采用自蔓延高温合成技术(SHS),在高压氮气中成功地合成了氮化铝晶须,并对它的显微结构进行了研究.研究结果表明,由于制备时的生长条件极不稳定,出现不同形态的晶须形貌,除了细长均匀的氮化铝晶须外,还出现了各种其它不规则形状的产物.过饱和度的不同,产生了枝蔓晶结构.按照VS生长方式,在均衡生长条件下,生长为本征结构的氮化铝晶须.晶须顶端的杂质小液滴,为VLS生长方式创造了条件.通过光学显微镜观察,合成出的氮化铝晶须是透明的.
参考文献
| [1] | Slack G A;Tranzili R A;Pohl R O et al.The Intrinsic Thermal Conductivity of AlN[J].Journal of Physics and Chemistry of Solids,1987,48(07):641. |
| [2] | Tummala R Rao .Ceramic and Glass-ceramic Packaging in the 1990s[J].Journal of the American Chemical Society,1991,74(05):895. |
| [3] | Windischmann H .Intrinsic Stress in the AlN Prepared by Dual-ion Beam Sputtering[J].Thin Solid Films,1987,154(1/2):159. |
| [4] | Davies T J;Evans P E .Aluminum Nitride Whiskers[J].Nature,1963,197(4867):587. |
| [5] | Miao Weiguo et al.Morphologies and Growth Mechanisms of Aluminum Nitride Whiskers[J].Journal of Materials Science,1997,32(08):1969. |
| [6] | Pablo G Caceres .Morphology and Crystallography of Aluminum Nitride Whiskers[J].Journal of the American Chemical Society,1994,77(04):977. |
| [7] | Drum C et al.Electron Microscopic Examinaion of Role of Axial Dislocations in Growth of AlN Whiskers[J].Applied Physics Letters,1964,4(09):164. |
| [8] | Hideaki Itoh et al.Growth of Aluminum Nitride Pillar Crystals by Chemical Vapour Deposition[J].Journal of Crystal Growth,1989,94(02):387. |
| [9] | 周和平;陈浩;刘耀诚 等.升华再结晶法制备AlN晶须及其生长特性[J].无机材料学报,1998,13(04):477. |
| [10] | Taylor K M .Lenie Camille,Some Properties of Aluminum Nitride[J].Journal of the Electrochemical Society,1960,107(04):308. |
| [11] | Munir Zuhair A .Synthesis of High Temperature Materials by Self-propagating Combustion Methods[J].Ceram Bull,1988,2(67):342. |
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