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以比表面积分别为4.26和17.4 m2/g两种AlN粉末为原料,添加5%Y2O3作为烧结助剂制备AlN-15BN陶瓷(质量分数,%),研究了AlN粉末特性对复合陶瓷致密化过程的影响.结果表明,AlN粉末比表面积对复合陶瓷致密化有重要影响,比表面积高的AlN粉末所制备的复合陶瓷致密化过程主要发生在1500~1650℃,1650℃烧结3 h后,复合材料的相对密度达95.6%,继续升高温度,对材料的密度影响不大;而低比表面积的AlN粉末所制备的复合陶瓷的致密化过程主要发生在1650~1850℃,1850℃烧结3 h,复合陶瓷的相对密度为86.4%.即高比表面积的AlN粉末有利于获得相对密度高的AlN-BN复合材料.

参考文献

[1] Mussler B H.Advanced materials & powders [J].Am Ceram Soc Bull,2000,79(6):45-47.
[2] 秦明礼,曲选辉,林建凉,等.氮化铝陶瓷的研究和发展[J].稀有金属材料与工程,2002,31(1):8-12.Qin M L,Qu X H,Lin J L,etal.Progress in research and development of aluminum nitride (AlN) ceramics [J].Rare Metal Materials and Engineering,2002,33 (1):8-12.
[3] 李晓云,施书哲,丘泰,等.热压烧结AlN-BN复合陶瓷的制备及介电性能[J].电子元件与材料,2003,22(6):6-8.Li X Y,Shi S Z,Qiu T,et al.Hot-pressed AlN-BN ceramic composites and its dielectric properties [J].Electronic Components & Materials,2003,22(6):6-8.
[4] 沈春英,唐惠东,丘泰,等.热压烧结BN-A1N复相陶瓷致密化研究[J].硅酸盐通报,2003,22(2):11-14.Shen C Y,Tang H D,Qiu T,et al.Study on the densifi-cation of BN and AlN composites ceramics [J].Bulletin of the Chinese Ceramic Society,2003,22 (2):11-14.
[5] 叶乃清,曾照强,胡晓清,等.BN-YAlON复合陶瓷的烧结行为[J].硅酸盐学报,1998,26(2):265-268.Ye N Q,Zeng Z Q,Hu X Q,etal.The sintering behavior of BN-YAlON composite ceramics [J].Jounnal of the Chinese Ceramic Society,1998,26(2):265-268.
[6] Tanemoto K,Kanai T.Hot-pressed hexagonal boron nitridealuminum nitride ceramic composites [J].Key Engineering Materials,1995,108-110:85-96.
[7] Kanai T,Tanemoto K,Kubo H.Reaction-bonded boron nitride-aluminum nitride ceramic composites [J].Jpn J Appl Phys,1991,30(6):1235-1238.
[8] Hagio T,Yoshida H.Sintering and crystallization of ground hexagonal boron nitride [J].J Mater Sci Lett,1994,13:653-657.
[9] Qin M L,Qu X H,Lin J L,et al.Synthesis of ultrafine aluminum nitride powder by a low-temperature carbothermal reduction process [J].Key Engineering Materials,2002,224-226:531-534.
[10] 秦明礼,曲选辉,张路生,等.沉淀前驱物制备AlN陶瓷粉末[J].中国有色金属学报,已录用.Qin M L,Qu X H,Zhang L S,et al.Preparation of AlN powders from the precipitated precursor [J].The Chinese Journal of Nonferrous Metals,accepted.
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