alumina ceramic

合集下载

2021年 学术论文文献阅读与机助汉英翻译第四章答案

2021年 学术论文文献阅读与机助汉英翻译第四章答案

2021年学术论文文献阅读与机助汉英翻译(2021春)第四单元How to Read—学术论文阅读技巧(详读细节)课后与章节测试1. What is Move 2 in method section?A Contextualizing study methodsB Describing the studyC Establishing credibility答案: 【B】2. Where is the method section?A After the introduction sectionB Before the introduction sectionC Before the discussion答案: 【A】3.The statistics in which figure are presented in percentage?A Pie chartB Bar chartC Photos答案: 【A】4. What is the second part of CARS model?A Establishing a research fieldB Creating a research gapC Occupying the research gap答案: 【B】5. How many moves are there in discussion section?A 3B 4C 5答案: 【B】6. What is the first mentioned frequently –used language device in this video?A NominalizationB PremodificationC Passive voice答案: 【A】7. The word Classroom-based is belong toA NominalizationB PremodificationC Passive voice答案: 【B】8. What is the function of “also”?A Add informationB Exemplifying relationshipC Concrete details答案: 【A】9. The phrase “As a result” belongs to which type of transitional words?A AddingB CausingC Comparing答案: 【B】10. How many methods the authors used in Clinical bonding to alumina ceramic part?A twoB threeC fourD five答案: 【B】因材料而异11. How many methods the authors used in Clinical bonding to zirconia ceramic part?A twoB threeC fourD five答案: 【C】因材料而异12. What is the best material used in this study?A non-retentive restorationsB retentive restorationsC resin-bonded fixed dental prosthesesD inlay-retained fixed dental prostheses答案: 【A】因材料而异13. What is the limitation of the study?A There are no controlled clinical trials showing that air-abrasion affects the clinical outcome of oxide ceramic restorations negatively.B There is still a controversy whether air-abrasion alters the strength of zirconia ceramic restorations.C On densely sintered zirconia clinically no durable bonding was achieved using silica-coating, silane application and using a MDP containing luting resin.D However, despite the use of retentive preparation design a debonding rate of 13.3% occurred within the first 53 months.答案: 【C】因材料而异14. In which part that the study results can be found in this article?A In methodsB In conclusionC In discussionD This article did not give a specific result答案: 【C】15. Which one is the title of the second table?A Chemical bonding mechanism of the phosphate monomer 10-methacryloyloxydecyl-dihydrogenphosphate (MDP) to dental oxide ceramics.B Recommended bonding methods to dental oxide ceramics based on published clinical trials.C Number of articles revealed in PubMed using the search term “zircon* AND ceramic AND bond* AND dent* AND resin” per 5 years time period after elimination of articles which did not deal with bonding to zirconia ceramic (311 − 44 = 267).D Failure rates of oxide ceramic fixed dental prostheses retained by resin-bonded retainer wings or inlays related to the pontic location.答案: 【B】16. What is the second subtitle of 2.1?A Method 1 tested on glass-infiltrated alumina ceramicB Method 1 tested on zirconia ceramicC Method 2 tested on glass-infiltrated alumina ceramicD Method 2 tested on zirconia ceramic答案: 【C】17. What is the second subtitle of part 2?A Clinical bonding to alumina ceramicB Clinical bonding to zirconia ceramicC Method 2 tested on glass-infiltrated alumina ceramicD Method 2 tested on zirconia ceramic答案: 【B】18. Part 1 Directions: There are 5 groups of sentences below, with each group consisting of 2 sentences. Read the sentences and choose the sentence which is more appropriate in academic articles. 1.如果我们认识不到废气这一严重问题,那么这个地球将面临毁灭。

低膨胀陶瓷材料种类概览

低膨胀陶瓷材料种类概览

低膨胀陶瓷材料种类概览1. 铝硅酸盐陶瓷(Alumina-Silicate Ceramic):这是一类由氧化铝和硅酸盐组成的陶瓷材料。

它们具有优异的物理性能,如高温稳定性、低热膨胀系数和良好的耐腐蚀性。

铝硅酸盐陶瓷广泛应用于炉具、电子设备和热处理设备等领域。

2. 氮化硅陶瓷(Silicon Nitride Ceramic):氮化硅陶瓷是一种非氧化陶瓷材料,具有卓越的高温强度和化学稳定性。

它们的热膨胀系数相对较低,并且具有良好的机械性能和抗氧化性能。

氮化硅陶瓷广泛应用于汽车发动机零部件、轴承球和切削工具等领域。

3. 氧化锆陶瓷(Zirconia Ceramic):氧化锆陶瓷是一种具有优异机械性能和高温稳定性的陶瓷材料。

它们的热膨胀系数较低,具有良好的抗磨损和耐腐蚀性能。

氧化锆陶瓷广泛应用于医疗器械、电子设备和刀具等领域。

4. 碳化硅陶瓷(Silicon Carbide Ceramic):碳化硅陶瓷是一种化合物陶瓷材料,具有优异的高温强度和耐腐蚀性。

它们的热膨胀系数低,具有良好的导热性能和高温稳定性。

碳化硅陶瓷广泛应用于煤气轮机、火电厂和半导体生产等领域。

5. 氮化铝陶瓷(Aluminum Nitride Ceramic):氮化铝陶瓷是一种具有优异的热导性和高温稳定性的陶瓷材料。

它们的热膨胀系数远低于大多数金属和陶瓷材料,具有良好的电绝缘性能和耐腐蚀性能。

氮化铝陶瓷广泛应用于电子散热器、射频功率器件和光电设备等领域。

总之,低膨胀陶瓷材料是一类具有优异性能的陶瓷材料,适用于高温环境下的应用。

铝硅酸盐陶瓷、氮化硅陶瓷、氧化锆陶瓷、碳化硅陶瓷和氮化铝陶瓷是几种常见的低膨胀陶瓷材料,它们在不同领域都有重要的应用。

随着科学技术的发展,我们可以期待低膨胀陶瓷材料在更多领域的应用与发展。

陶瓷坩埚灼烧氧化铝

陶瓷坩埚灼烧氧化铝

陶瓷坩埚灼烧氧化铝英文回答:Ceramic crucibles are commonly used for firing alumina, a process known as calcination. Calcination is the process of heating a substance to a high temperature to bring about a chemical reaction, such as the conversion of aluminum hydroxide to aluminum oxide. The crucible provides a controlled environment for the calcination process, allowing for precise temperature control and preventing contamination of the alumina.One of the main advantages of using a ceramic crucible for firing alumina is its high temperature resistance. Ceramic materials, such as porcelain or alumina-based ceramics, can withstand extremely high temperatures without melting or deforming. This is crucial for the calcination process, which typically requires temperatures above 1000 degrees Celsius. The ceramic crucible acts as a protective container, ensuring that the alumina remains intact duringthe firing process.Another advantage of using a ceramic crucible is its chemical inertness. Ceramic materials are non-reactive and do not interact with the substances being heated. This is important for calcining alumina, as any reaction between the crucible and the alumina could result in impurities or unwanted by-products. The inertness of the ceramic crucible ensures that the calcination process remains pure and uncontaminated.Furthermore, ceramic crucibles are durable and long-lasting. They can be reused multiple times without losing their integrity or performance. This is cost-effective and environmentally friendly, as it reduces the need for frequent replacement of crucibles. Additionally, ceramic crucibles are easy to clean and maintain, requiring minimal effort to remove any residue or impurities after each use.In terms of drawbacks, ceramic crucibles can be brittle and prone to cracking or breaking under certain conditions. Extreme temperature changes or physical impact can causethe crucible to fracture, rendering it unusable. However, with proper handling and care, this risk can be minimized.Overall, ceramic crucibles are an excellent choice for firing alumina due to their high temperature resistance, chemical inertness, and durability. They provide a reliable and controlled environment for the calcination process, ensuring the production of high-quality alumina.中文回答:陶瓷坩埚是常用于灼烧氧化铝的一种容器。

Al_2O_3陶瓷与5005铝合金的高频感应钎焊

Al_2O_3陶瓷与5005铝合金的高频感应钎焊
随着钎焊温度的升高钎缝中al形核长大使钎缝组织塑性增加有利于缓解接头的残余应力接头的室温抗剪强度在620时可达52mpa3结论1采用agcuti粉末活性金属化al2o3陶瓷界面组织受温度和保温时间的影响均较大温度过高或保温时间过长均会导致陶瓷侧反应层碎裂温度在880900之间保温时间不超过10min可以得到厚度适当连续致密无缺陷的陶瓷侧反应层
钎焊过程中,Al2 O3 陶瓷的尺寸是 5. 0 mm × 5. 0 mm × 3. 0 mm,5005 铝合金的抗剪强度试样尺寸是 25. 0 mm × 10. 0 mm × 2. 5 mm,组织观察试样尺寸是 10. 0 mm × 10. 0 mm × 2. 5 mm.
5005 铝合金试样由水砂纸逐级打磨到 800 号, 钎焊前将待焊试样放在丙酮中超声清洗. Al2 O3 陶 瓷活性金属化温度范围是 860 ~ 950 ℃ ,保温时间是 5 ~ 30 min,加热速率为 15 ℃ / min,降温速率为 10 ℃ / min. 高 频 感 应 钎 焊 温 度 为 600 ℃ ,保 温 时 间 1 min,加热速率为 15 ℃ / min. 采用电子扫描显微镜 ( SEM,S-3400) 对金属化界面和钎焊接头界面形貌 进行观察,并对局部区域进行能谱分析,从而确定接 头的界面组织 和 结 构. 利 用 电 子 万 能 试 验 机 ( IN-
摘 要: 为实现 Al2 O3 陶瓷与 5005 铝合金的低温连接,采用 Ag-Cu-Ti 粉末对 Al2 O3 陶瓷表面进行活性金属化处 理. 结果表明,当活性金属化温度为 880 ~ 900 ℃ ,保温时间 10 min 时,在 Al2 O3 陶瓷界面形成连续致密无缺陷的 Ti3 Cu3 O 反应层. 采用 Al-Si 钎料对活性金属化 Al2 O3 陶瓷与 5005 铝合金进行高频感应钎焊,研究了接头的典型界 面组织及其形成过程. 结果表明,当温度为 600 ℃ ,保温时间为 1 min 时,铝合金侧由团状 α-Al 和晶间渗入的 AlAg-Cu 共晶组织构成,团状 α-Al 上有板条状初晶硅出现,Al2 O3 陶瓷侧有弥散分布的过共晶 Al-Si 组织,Ti3 Cu3 O 反 应层的形成是实现 Al2 O3 陶瓷与 5005 铝合金可靠连接的关键,接头的最大抗剪强度达到 52 MPa. 关键词: 活性金属化; 间接钎焊; Al2 O3 陶瓷; 铝合金 中图分类号: TG 454 文献标识码: A 文章编号: 0253 - 360X( 2015) 06 - 0035 - 04

氧化铝泡沫陶瓷过滤板生产工艺流程

氧化铝泡沫陶瓷过滤板生产工艺流程

氧化铝泡沫陶瓷过滤板生产工艺流程英文回答:The production process of alumina foam ceramic filter plate involves several steps. Here is a brief overview ofthe process:1. Raw material preparation: The first step is to prepare the raw materials. The main raw material used in alumina foam ceramic filter plate is alumina powder. The powder is carefully selected and processed to ensure its quality and consistency.2. Mixing: The alumina powder is then mixed with a binder and other additives. The mixture is thoroughly blended to ensure a uniform distribution of the ingredients.3. Molding: The blended mixture is then shaped into the desired form of the filter plate. This can be done through various methods such as extrusion, injection molding, orpressing. The molded filter plate is then allowed to dry.4. Firing: The dried filter plate is fired in a kiln at high temperatures. This process helps to remove the binder and other organic materials, as well as to sinter the alumina particles together, resulting in a strong and porous ceramic structure.5. Cutting and shaping: After firing, the filter plate is cut and shaped into the desired dimensions and specifications. This can be done using various cutting and shaping techniques such as sawing, grinding, or machining.6. Surface treatment: The filter plate may undergo surface treatment to enhance its performance. This can include coating the surface with a thin layer of special materials or applying a glaze to improve its resistance to chemicals or abrasion.7. Quality control: Throughout the production process, strict quality control measures are implemented to ensure the final product meets the required specifications. Thisincludes testing the physical and chemical properties of the filter plate, as well as conducting performance tests to evaluate its filtration efficiency and durability.中文回答:氧化铝泡沫陶瓷过滤板的生产工艺流程包括以下几个步骤:1. 原料准备,首先需要准备氧化铝泡沫陶瓷过滤板的原料。

口腔学英文课件:All-Ceramic Restoration

口腔学英文课件:All-Ceramic Restoration
6
The lingual surface needs additional reduction for strength. The appearance of the completed restoration can be influenced and modified(改进) by selecting different colors of luting agent(粘结剂).
4
Recommended reduction for the all-ceramic crown
Do you remember the numbers of the metal-ceramic crown?
5
Advantages
The advantages of a complete ceramic crown include its superior esthetics, its excellent translucency (similar to that of natural tooth structure), and its generally good tissue response.
11
A sloping 倾斜的shoulder is not recommended for the all-ceramic crown. It does not support the porcelain. Incisal loading leads to tensile stresses near the margin.
10
Proper preparation design is critical to ensuring mechanical success. A 90-degree cavosurface洞面angle is needed to prevent unfavorable distribution of stresses and to minimize the risk of fracture.

陶瓷简单介绍英文带翻译

陶瓷的性质
陶瓷以其优异的机械性能而闻名,包括高硬度、强度和刚性。这些材料还能抵抗高温、腐蚀和磨损,使它们在恶劣环境中得到应用。此外,陶瓷具有低热导率和电导率,这使它们在广泛的电气和热绝缘应用中非常有价值。此外,一些陶瓷是半透明的,能够透过光线,这使它们非常适合装饰和艺术应用。
陶瓷的用途
陶瓷产品在各行各业都有广泛的用途。在建筑领域,陶瓷通常用于瓷砖、砖块和卫生洁具,因为它们耐用且抗潮。在电子行业,陶瓷用于制造电子元件,如绝缘体、电容器和电阻器。先进的陶瓷材料也应用于医疗领域,如牙种植和假肢,因为它们具有生物相容性和耐用性。在航空航天和汽车应用中,陶瓷以其耐高温和轻质的特性而得到应用。最后,在艺术和设计行业,陶瓷在制作陶器、雕塑和装饰品方面非常受欢迎。
Composition of Ceramics
Ceramics are typically made from inorganic compounds that are shaped and then hardened through the application of heat. The most common components of ceramic materials include clay, silica, alumina, and feldspar. These raw materials are mixed together and then shaped into the desired form, such as a bowl or vase. After shaping, the ceramics are fired in a kiln at high temperatures, which causes the atoms in the material to rearrange and form a strong, durable structure.

铝合金的英语词汇

铝合金的英语词汇产品 Products铝锭Aluminum Ingot氧化铝 alumina ,aluminum oxide氢氧化铝 Hydrogen alumina电解铝electrolyse aluminum镀铝aluminum plating铝板Aluminum Board/plate/sheet花纹铝板 Aluminum embossed sheet彩铝板 colored Aluminum plate纯铝板pure Aluminum plate复合铝板clad aluminium硬铝板 duralumin sheet铝合金Aluminum alloy锻用铝合金aluminum alloy for temper铝铜合金aluminum copper alloy铝基合金aluminum base alloy铝铁合金aluminum iron alloy铝镁合金aluminum magnesium alloy铝镍合金aluminum nickel alloy铝硅合金aluminum silicon alloy铝基硅镁合金,安奇可罗达耐蚀铝硅镁合金; 铝基硅镁合金anticorodal耐蚀铝合金corrosion-proof/ corrosion- resistant/ corrosion resisting aluminum alloy铝黄铜aluminum brass铝青铜aluminum bronze高铝砖alumina brick铝合金型材aluminium alloy sections铝合金线Aluminum alloy wire铝型材Aluminum profile铝棒 Aluminum stick/rod铝圆棒Aluminum round bar铝箔 Aluminum foil铝卷 Aluminum roll铝带/铝条 Aluminum strip铝线 Aluminum thread/wire钢芯铝绞线 aluminium cable steel reinforcing铝管 Aluminum pipe/tube精拉铝管 finishing Aluminum tube伸缩铝管 extension Aluminum tube挤压铝管extruded aluminum pipe铝管避雷器 aluminium cell lightning arrester挤压铝窗台 extruded aluminum sill铝斜坡Aluminium Ramps铝曲管bended aluminium tube无缝铝管seamless Aluminum pipe散热器 Radiator铝塑板 Aluminum plastic board铝天花 Aluminum ceiling铝板贴面吸声天花板 aluminum absorbent ceiling 铝型材地板Aluminium Flooring Profiles铝幕墙 Aluminum curtain wall铝制品 Aluminum products铝制器皿 aluminium ware铝制建筑构件aluminum unit铝圆片 Aluminum wafer铝铸件 Aluminum casting铝锻件Aluminum forge铝盖 Aluminum cover铝箱 Aluminum trunk铝梯 Aluminum stairs铝粉 Aluminum powder高铝陶瓷alumina ceramics铝门窗 Aluminum Doors & Windows废铝aluminium scrap铝片 sheet aluminium铝标牌 aluminium scutcheon铝铆钉 aluminum rivet铝轮毂 aluminum wheel spider/hub铝百叶 aluminum shutter铝箔制品Aluminum foil products原铝 virgin Aluminum铝梁 aluminum beam工业铝原料industrial Aluminum materials 铁分离器iron separator磁性上辊 magnetic roller过滤器 filter去磁器demagnetizer振动筛vibration sieve熔炼焊剂 smelting flux镁助熔剂 eliminate magnesium flux原辅材料 Raw Materials铝矿aluminum ore铝土矿alumyte铝矾土bauxite铝砂aloxite涂料 coating耐火材料 refractory material稀土tombar thite/ rare-earth(RE)添加剂 additive氟化盐 fluoride salt氧化锌zinc oxide氟化铝aluminium fluoride硅酸铝aluminum silicate氯化铝aluminum chloride硝酸铝aluminum nitrate氮化铝aluminum nitride焦碳. coke石灰石 limestone冰晶石 cryolite电解滤液electrolyse filtrate熔剂油flux oil滤清油filtering oil纯碱 alkali絮凝剂flocculating agent/ admixture 液碱精炼剂refining agent覆盖剂covering agent打渣剂fluxing medium液压油hydraulic liquid/medium过滤板screen plate包装材料 Packaging Material抛光剂 polishing composition纸管 paper tube纸制品 paper products纸板 paperboard厚纸板 cardboard铝酸盐 aluminate铝酸盐夹杂物aluminate inclusion铝酸aluminic acid铝铸件aluminium castings铝镀覆层aluminized coat铝化荧光屏aluminized screen渗铝aluminizing铝硅酸盐aluminosilicate硅酸铝耐火材料aluminosilicate refractory铝焊料aluminum solder防腐剂anticorrodant防腐剂anticorrosive agent防腐涂料anticorrosive paint催化剂catalyzer含铝材料alumina-bearing material高铝矿渣aluminous clinke机械设备Machinery equipment工业炉 Industrial furnace挤压设备extrusion equipment铝电解设备 Aluminum electrolyse Equipment 熔铸设备Founding Equipment净化设备 Purifying Equipment冷轧设备 Cold-rolled Equipment热轧设备 Heat-rolled Equipment铸扎设备Founding Equipment包装设备 packaging equipment检测设备inspection equipment切割设备 Cutting Equipment磁电设备magnetoelectricity Equipment焊接设备 Jointing equipment压延设备 Plain Rolled Equipment隔热设备 Thermal-insulation Equipment门窗幕墙设备 Doors& Windows and Curtain Wall Equipment 型材拉弯设备Profiles Bending Equipment表面处理设备 Surface Treatment Equipment气体发生设备 Gas processing Equipment铝电解设备 aluminium electrolysis Equipment切割设备 cutting apparatus剪切设备 shearing equipment涂层设备 Coating equipment清洗设备 cleaning equipment喷涂设备 spraying equipment抛光设备 polishing unit气体发生设备 gas generation equipment工业毛毡 Industrial felt整型机integer machine铝型材挤压模具Aluminum Section-Bar Extruding Mould铝热法aluminothermic process/ aluminothermy铝热还原aluminothermic reduction铝热焊aluminothermic welding≤-------------------------------------------------------------------------------------------------------------------其他 others铝支承结构 aluminum bearing structure铝雷管 aluminum blasting cap铝车身 aluminum body铝砌合屋顶屋面 aluminum bonded roof covering铝黄铜 aluminum brass铝桥 aluminum bridge铝青铜 aluminum bronze铝青铜涂料 aluminum bronze paint铝制建筑外门 aluminum building entrance door铝制建筑构件 aluminum building member铝制建筑制品 aluminum building product铝制建筑板材 aluminum building sheet铝制建筑构件 aluminum building unit铝心电缆 aluminum cable铝心电缆甲套 aluminum cable sheath铝雷管 aluminum cap。

连续氧化铝纤维增韧陶瓷基复合材料

连续氧化铝纤维增韧陶瓷基复合材料In recent years, continuous Alumina (Al2O3) fiber-reinforced ceramic matrix composites (CMCs) have attracted much attention in the field of advanced materials. These composites offer improved mechanical properties, such as high strength and toughness, making them suitable for awide range of applications.近年来,连续氧化铝(Al2O3)纤维增韧陶瓷基复合材料(CMC)在先进材料领域引起了广泛关注。

这些复合材料具有高强度和韧性等卓越的力学性能,使其适用于广泛的应用领域。

One of the key advantages of continuous Alumina fiber-reinforced CMCs is their excellent thermal and chemical stability. Alumina has a melting point above 2000°C, which makes it resistant to high temperatures. Additionally, itis chemically inert and does not react with most substances. This stability allows these composites to be used inextreme environments where other materials may fail.连续氧化铝纤维增韧陶瓷基复合材料的一个关键优势是其出色的热稳定性和化学稳定性。

不同孔径的氧化铝陶瓷

不同孔径的氧化铝陶瓷英文回答:Aluminum Oxide Ceramic with Different Pore Sizes.Aluminum oxide ceramic, also known as alumina ceramic, is a type of advanced ceramic material that is composed primarily of aluminum oxide (Al2O3). It is characterized by its high strength, hardness, wear resistance, and thermal stability. One of the key properties of alumina ceramic is its porosity, which refers to the presence of pores or voids within the material. The pore size of alumina ceramic can vary significantly, depending on the manufacturing process and the intended application.Alumina ceramics with different pore sizes exhibit distinct properties and are used in a wide range of applications. Some of the most common types of alumina ceramics include:Dense alumina ceramic: This type of alumina ceramic has a very low porosity, typically less than 1%. It is characterized by its high strength, hardness, and wear resistance. Dense alumina ceramics are often used in applications where these properties are critical, such as in cutting tools, wear plates, and armor.Porous alumina ceramic: This type of alumina ceramic has a higher porosity, typically between 1% and 50%. It is characterized by its high surface area and permeability. Porous alumina ceramics are often used in applications where these properties are important, such as in filters, catalysts, and membranes.Ultraporous alumina ceramic: This type of alumina ceramic has a very high porosity, typically greater than 50%. It is characterized by its low density and high surface area. Ultraporous alumina ceramics are often used in applications where these properties are critical, such as in thermal insulation, sound absorption, and catalysis.The pore size of alumina ceramic can be controlled byadjusting the manufacturing process. Some of the methods used to control pore size include:Sintering temperature: The sintering temperature affects the grain size and pore size of alumina ceramic. Higher sintering temperatures typically result in larger grain sizes and pores.Doping: Doping alumina ceramic with certain elements, such as magnesium or zirconium, can affect the pore size. Doping can lead to the formation of new phases that have different pore structures.Templating: Templating is a process that uses a sacrificial template to create pores of a specific size and shape. The template is removed after sintering, leaving behind pores with the desired characteristics.The pore size of alumina ceramic has a significant impact on its properties and applications. Some of the key factors that are affected by pore size include:Strength: In general, the strength of alumina ceramic decreases with increasing pore size. This is because pores act as stress concentrators, which can lead to failure under load.Hardness: The hardness of alumina ceramic also decreases with increasing pore size. This is because pores provide a path for crack propagation.Wear resistance: The wear resistance of alumina ceramic decreases with increasing pore size. This is because pores provide a surface for wear particles to lodge and abrade.Thermal conductivity: The thermal conductivity of alumina ceramic decreases with increasing pore size. Thisis because pores act as thermal insulators.Electrical conductivity: The electrical conductivity of alumina ceramic decreases with increasing pore size. This is because pores act as electrical insulators.Due to their unique properties, alumina ceramics with different pore sizes are used in a wide range of applications, including:Cutting tools: Dense alumina ceramics are used in cutting tools because of their high strength, hardness, and wear resistance.Wear plates: Dense alumina ceramics are also used in wear plates to protect surfaces from wear and abrasion.Armor: Dense alumina ceramics are used in armor to provide protection against ballistic impact.Filters: Porous alumina ceramics are used in filters to remove particles from fluids.Catalysts: Porous alumina ceramics are used as catalysts to support catalytic reactions.Membranes: Porous alumina ceramics are used as membranes to separate different components of a fluidmixture.Thermal insulation: Ultraporous alumina ceramics are used in thermal insulation to reduce heat transfer.Sound absorption: Ultraporous alumina ceramics areused in sound absorption to reduce noise levels.Catalysis: Ultraporous alumina ceramics are used as catalysts to support catalytic reactions.中文回答:不同孔径氧化铝陶瓷。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

Properties of Alumina/Aluminum Oxide (Al2O3):
Very good electrical insulation
Moderate to extremely high mechanical strength
Very high compressive strength
High hardness
Moderate thermal conductivity
High corrosion and wear resistance
Good gliding properties
Low density
Operating temperature without mechanical load 1,000 to 1,500°C.
food compatible
Applications of Aluminum Oxide (Al2O3):
Examples of applications for aluminum oxide Al2O3 advanced ceramics are heavy-duty forming tools, substrates and resistor cores in the electronics industry, tiles for wear protection and ballistics, thread guides in textile engineering, seal and regulator discs for water taps and valves, heat-sinks for lighting systems, protection tubes in thermal processes or catalyst carriers for the chemicals industry.
Products:
Alumina Hip Joints/arthroplasty/Ball Heads Ceramic catalyst carriers:
Chemical inertness
Mechanical strength and stability
Low surface profile
Bulk material uniformity
1)Aluminum Substrates:
Thermocycling capability
Thermal shock resistance
Flexural strength
Surface quality
Thermal conductivity
2)Armor Plates/Ballistic Protection Components: High hardness
High tensile strength
High Young’s modulus
High velocity of sound
Low basis weight
3)Ceramic Seal Rings, Bearings and Sealing Technology in Automotive Engineering/vehicle engineering:
wear resistance, temperature resistance and stability in these aggressive environments.
4)Pumps and Pump Casing Applications:
Uses range from valves and sensor bodies to seal rings, seals and rollers for fuel pumps, water pumps or roller bearings all the way to friction bearings and shafts.
coolant pumps, electronic fuel pumps or high-pressure pumps for diesel engines.
5) Ceramic catalyst carriers are an important group of carrier materials in heterogeneous catalysis and meet property requirements such as: Chemical inertness
Mechanical strength and stability
Low surface profile
Bulk material uniformity
6) Protection Against Wear and Corrosion:
They are used in machines and systems in steel plants, in foundries, in the mining, processing and preparation of minerals, within the paper, pulp, chemical and pharmaceutical industries, in power plants (coal, wood and solid fuels), in cement production, and in concrete production and transportation.
7) Feedthroughs:
Semiconductor processing equipment
Particle accelerators
Furnaces
Analysis equipment
Coating applications in vacuum environments Satellite instrumentation
X-ray equipment
Feedthroughs for low voltages
8)Ceramic Tubes and Insulators:
9)LED Applications / LED Ceramics:
10) Metalized Ceramics in Practical Applications: Surge arresters
Triggered spark gaps
Thyristor housings and diode housings Current feedthroughs
Diffusion pumps
Transmission tubes
Integrated circuits
Insulators
Integrated circuits
11) Ceramic Navels:
Good wear and corrosion resistance Ultrapure 99.7% Al2O3 alumina ceramics Precision manufacturing。

相关文档
最新文档