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Preparation of Aluminum Nitride-Titanium Nitride Solid-Solutions using Preceramic Materials

陶瓷前体材料制备氮化铝-氮化钛固溶体

基本信息

批准号：
10650672
负责人：
SUGAHARA Yoshiyuki
金额：
$ 2.24万
依托单位：
Waseda University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650672/
关键词：
Preceramic Titanium Nitride Aluminum Nitride Solid Solution Composite Inorganic Polymer Nitride Ceramics Structural Analyses

项目摘要

Pyrolytic preparations of Ti-Al-N ceramics from three blended precursors were investigated. The precusors were perpared by stirring (HAINィイD1iィエD1Pr)ィイD2mィエD2 and an aminolysis product of Ti (NMeィイD22ィエD2)ィイD24ィエD2 with MeHNCHィイD22ィエD2CHィイD22ィエD2NHMe in CィイD26ィエD2HィイD26ィエD2. IR and ィイD11ィエD1H NMR analyses suggested that essentially no Ti-N-Al bonds were present in the precursors. Pyrolysis of the precursors under NHィイD23ィエD2-NィイD22ィエD2 led to the formation of brown solids with ceramic yields of about 30%, and the Ti : Al ratios in the pyrolyzed products were close to those of the precursors. XRD analysis of the pyrolyzed product from the precursor with Ti : Al=5 : 1 indicated the formation of a NaCl-type compound as the only crystalline phase. Pyrolysis of the precursor with Ti : Al=2 : 1 led to the formation of AIN besides the major NaCl-type compound. A ceramic composite containing AIN and the NaCl-type compound was formed by pyrolysis of the precursor with Ti : Al=1 : 2. The lattice parameters of the NaCl-type compounds indicate that it is Ti (N, C, O) rather than (Ti, Al) N. The SEM observation revealed that the products consisted of particles with diameters of 20-40 nm.

研究了以三种共混前驱体为原料热解制备Ti-Al-N陶瓷。前驱体是通过搅拌(HainィイD1iィエD1Pr)ィイD2mィエD2和Ti(nmeィイD22ィエD2)ィイD24ィエD2与MeHNCHィイD22ィエD2CHィイD22ィエD2NHMe在CィイD26ィエd2hィイD26ィエD2中的氨解产物制备的。IR和ィイD11ィエD1H核磁共振分析表明，前驱体中基本上不存在Ti-N-Al键。前驱体在NHィイD23ィエD2-NィイD22ィエD2下热解生成棕色固体，陶瓷产率约为30%，热解产物中的钛铝比与前驱体接近。对钛铝比为5：1的前驱体的热解产物进行了X射线衍射分析，结果表明，唯一的晶相为氯化钠类化合物。Ti：Al=2：1的前驱体热解除生成主要的氯化盐型化合物外，还生成了AlN。以Ti：Al=1：2的前驱体为原料，热解制得了含AlN和氯化钠类化合物的陶瓷复合材料。氯化钠类化合物的晶格参数表明，它是Ti(N，C，O)而不是(Ti，Al)N。扫描电子显微镜观察表明，产物由直径为20-40 nm的颗粒组成。