助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   alumina matrix composites 的翻译结果: 查询用时:0.175秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

alumina matrix composites
相关语句
  氧化铝基复合材料
     Processing and Mechanical Properties of 3 Dimensional Braided Carbon Fiber Preform Reinforced Alumina Matrix Composites Prepared by Sol gel Method
     用溶胶-凝胶法制备碳纤维三维编织物增强氧化铝基复合材料的研究
短句来源
  “alumina matrix composites”译为未确定词的双语例句
     The relationship of viscosity and properties of SiC_p particulates reinforced heat resistant alumina matrix composites
     SiC_p颗粒增强耐热铝基复合材料孔隙率与力学性能
短句来源
     Instead of ceramic monoliths, ceramic composites like zirconia toughened alumina andother alumina matrix composites are currently investigated.
     研究中使用的材料是氧化锆增韧的氧化铝复合陶瓷和其它氧化铝复合陶瓷,不再是单体陶瓷。
短句来源
  相似匹配句对
     Mechanical Properties of Alumina and Alumina-Matrix Composites
     氧化铝及氧化铝基复合材料强韧性的研究
短句来源
     Microstructures and Toughening Mechanisms of Alumina-Matrix Composites
     氧化铝基陶瓷复合材料的微观结构与增韧机理
短句来源
     MgLi Matrix Composites
     Mg-Li基复合材料
短句来源
     Aluminum Matrix Composites Strengthened by Cu Coating Alumina
     铜包裹氧化铝粉体增强铝基复合材料的研究
短句来源
     Effects of Alumina Film on the Wetting Processes of Aluminum Matrix Composites
     氧化铝膜对铝基复合材料润湿行为的影响
短句来源
查询“alumina matrix composites”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  alumina matrix composites
Previous attempts to fabricate such alumina matrix composites have been unsuccessful due to the higher temperatures needed to densify Al2O3 coupled with the fact that SnO2 decomposes to SnO in reducing environments.
      
The infiltrated fibre mats, being of high quality, i.e., low macroporosity and absence of significant microcracking, serve as prepregs for the manufacture of alumina matrix composites reinforced with a two- or three-dimensional metallic phase.
      
Crack tip shielding phenomena were studied in monolithic alumina and in SiC fibre-reinforced alumina matrix composites as a function of fibre coatings.
      
Microstructure and fracture toughness of nickel particle toughened alumina matrix composites
      
Creep tests were performed on alumina matrix composites containing 9.3,18 and 30 vol % of SiC whiskers.
      
更多          


Many materials are used in medicine for a variety of applications ranging from total replacement of hard or soft tissues(such as bone plates, pins, joint, dental implants, etc.), repair, diagnostic or corrective devices (such as pacemakers, heartvalves, etc.). Not only are the mechanical properties important, but also the material should be biocompatible with the humanbody and stable for a long period. Due to their excellent properties such as high strength, biocompatibility and stability inphysiological environments,...

Many materials are used in medicine for a variety of applications ranging from total replacement of hard or soft tissues(such as bone plates, pins, joint, dental implants, etc.), repair, diagnostic or corrective devices (such as pacemakers, heartvalves, etc.). Not only are the mechanical properties important, but also the material should be biocompatible with the humanbody and stable for a long period. Due to their excellent properties such as high strength, biocompatibility and stability inphysiological environments, ceramics are investigated as bone substitute materials. In this way, ceramic components havebeen used for total hip replacement components in Europe since the early 1970s. Alumina and zirconia monoliths are mainlyused for these components. However, zirconia can undergo low temperature degradation in aqueous environment.Current research is focusing on increasing the strength and wear resistance, meanwhile reducing the size and extendingthe lifetime of ceramic components. Instead of ceramic monoliths, ceramic composites like zirconia toughened alumina andother alumina matrix composites are currently investigated. Another possibility is to use components based on alumina andzirconia with a functionally graded composition. The composition gradient can be established during shaping by means ofelectrophoretic deposition (EPD) to obtain a pure alumina surface region and a homogeneous alumina/zirconia core with in-termediate continuously graded regions to generate thermal residual stresses after sintering. The gradient profiles are de-signed to obtain maximum compressive surface stresses and minimum tensile stresses in the core of the component to in-crease the strength and wear resistance compared to pure alumina components.

许多材料在医学领域应用广泛,例如,整体替换硬组织或软组织的元件(如骨盆、骨头、关节、植牙等)、修补、诊断或矫正仪器(如起搏器、心脏阀等)。这些材料不仅要有好的力学性能,还要保持长期稳定,不能与人体相排斥。由于陶瓷材料在生理环境中具有强度高、生物相容性强和稳定性好的优点,人们研究用陶瓷材料替换骨骼。从20 世纪70 年代起,欧洲人用陶瓷组件置换整个髋关节。这些组件主要由氧化铝和氧化锆单体制成。然而,在有水环境中,氧化锆会发生低温降解。目前人们的研究重点在于提高陶瓷组件的强度和耐磨性,同时缩小其尺寸并延长其使用寿命。研究中使用的材料是氧化锆增韧的氧化铝复合陶瓷和其它氧化铝复合陶瓷,不再是单体陶瓷。另外,还可以使用氧化铝和氧化锆功能梯度复合材料。该梯度材料可以利用电泳沉积法(EPD)制得,其表面为纯氧化铝,中心部分为均匀的氧化铝、氧化锆复合材料,中间过渡部分是呈连续梯度渐变的氧化铝、氧化锆复合材料,烧成后会产生剩余热应力。设计这样的梯度结构是为了使复合材料具有最大表面压应力和最小内部张应力,与纯氧化铝组件相比,提高了强度和耐磨性。

Mixed rare earth elements were incorporated into alumina ceramic materials.Hot-pressing was used to fabricate alumina matrix composites with nitrogen atmosphere protection.Microstructures and mechanical properties of the composites were tested.It is indicates that the bending strength and fracture toughness of alumina matrix ceramic composites sintered at(1550 ℃) and 28 MPa for 30 min are improved evidently.Based on mixed rare earth elements acting as a toughening phase,AlTiC master...

Mixed rare earth elements were incorporated into alumina ceramic materials.Hot-pressing was used to fabricate alumina matrix composites with nitrogen atmosphere protection.Microstructures and mechanical properties of the composites were tested.It is indicates that the bending strength and fracture toughness of alumina matrix ceramic composites sintered at(1550 ℃) and 28 MPa for 30 min are improved evidently.Based on mixed rare earth elements acting as a toughening phase,AlTiC master alloys were also added in as sintering assistant,which could prompt the formation of transient liquid phase,and thus nitrides of rare earth elements were produced.All the above are beneficial to the improvement of mechanical properties of alumina matrix ceramic composites.

把混合稀土引入到氧化铝陶瓷材料中,在氮气气氛保护下,用热压烧结方法制备了氧化铝基复相结构陶瓷材料,并对其微观结构与力学性能进行了研究。结果表明:在1550℃,28 MPa条件下热压烧结制备的氧化铝基陶瓷复合材料的抗弯强度和断裂韧性均有明显提高。在混合稀土增韧补强氧化铝陶瓷材料基础上,采用AlTiC中间合金作为烧结助剂,可形成过渡液相烧结,促进了稀土氮化物的生成,进一步提高了复合材料的力学性能。

 
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关alumina matrix composites的内容
在知识搜索中查有关alumina matrix composites的内容
在数字搜索中查有关alumina matrix composites的内容
在概念知识元中查有关alumina matrix composites的内容
在学术趋势中查有关alumina matrix composites的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社