• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Powder metallurgy world congress amp; exhibition >Development of Aluminium Titanate Containing Kiln Furniture for the Sintering of Powder Metals
【24h】

Development of Aluminium Titanate Containing Kiln Furniture for the Sintering of Powder Metals

机译：粉末金属烧结用钛酸铝窑炉的研制

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of the work is the development of aluminium titanate containing low silica kiln furniture for the sintering of powder metals. In the past a lot of different materials were used, in the meantime based on cordierite containing ceramics due to the need of a high thermal shock resistance. The second phase of this kind of material was more or less mullite, which can not decrease the amount of silica in the product really. This kind of ceramic has meanwhile two disadvantages. The first one is the silica content which causes contact reactions with the metal powder parts in the sintering process with the result of surface defects on the sintered parts, especially a decrease in the hardness of the surface. The second disadvantage is the lower ability of positive reactions such as absorption of temporary binders through the sintering process, especially in the case of sintering parts which are produced by the MIM process. The reason for that was found in the porosity itself and the pore size distribution.rnThe newly developed kiln furniture based on corundum with a silica content of less than 5 % and additionally doped with aluminium titanate has decreased the contact reaction down to zero. Due to the special composition the above mentioned positive reactions through the sinter process are also possible. And with the combination of corundum and aluminium titanate resulting in an enhanced thermal shock resistance the new kiln furniture can be used in all kinds of fast firing processes.
机译：这项工作的目的是开发用于粉末金属烧结的含钛硅铝的低硅窑具。过去，由于需要高耐热冲击性，因此使用了许多不同的材料，同时基于含堇青石的陶瓷。这种材料的第二相或多或少是莫来石，它不能真正减少产品中二氧化硅的含量。同时，这种陶瓷具有两个缺点。第一个是二氧化硅含量，其在烧结过程中引起与金属粉末零件的接触反应，结果是在烧结零件上出现表面缺陷，特别是表面硬度降低。第二个缺点是正反应的能力较低，例如通过烧结过程吸收临时粘合剂，特别是在通过MIM工艺生产的烧结零件的情况下。原因在于孔隙率本身和孔径分布。新开发的基于刚玉的二氧化硅含量小于5％的窑炉家具，另外掺有钛酸铝，使接触反应降至零。由于特殊的组成，上述通过烧结过程的正反应也是可能的。结合刚玉和钛酸铝可增强耐热冲击性，这种新型窑具可用于各种快速烧制工艺。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号