高能球磨制备氮化铝粉体的研究进展  

Research Progress on Preparation of AlN Powder by High-energy Ball Milling

作　　者：张宝剑[1] 林少芬[1] 戴乐阳[1] 刘志杰[2] 

机构地区：[1]集美大学轮机工程学院,厦门361021 [2]大连理工大学三束材料改性教育部重点实验室,大连116024

出　　处：《材料导报（纳米与新材料专辑）》2014年第1期403-405,共3页

基　　金：国家自然科学基金(51177008);福建省自然科学基金(2013J01202)

摘　　要：综述了应用高能球磨技术制备氮化铝粉体的研究进展。高能球磨机械力活化效应可以降低后续合成氮化铝的碳热还原反应温度,其主要机制是球磨导致氧化铝粉体的细化以及晶格畸变的积累,进而降低了反应的热力学能垒。而球磨使得原料粉体均匀混合,增加动力学扩散通道并不是低温合成氮化铝的主要原因。利用等离子体辅助高能球磨技术可以高效活化氧化铝粉体,显著降低后续反应的激活能,这有望成为制备氮化铝粉体的一条新途径。The progress on preparation of AkIN powder by high-energy ball milling is reviewed. The tempera-ture of subsequent carbothermal reduction for A1N is redued by the mechanical activation effect during high-energy ballmilling. The activation mechanism is the grain refinement and lattice distortion of Al2O3 by ball milling. It reduces theenergy barrier of the reaction in thermodynamics greatly. The kinetic diffusion channels are increased also because theraw materials is mixed evenly by ball milling, however, it is not the prime reason for the synthesis of/kiN in a lowtemperature. The activation energy decreases observably because Al2O3 powders can be activated efficiently by plasma-assisted high-energy ball milling. It may become a new way for preparation of AlN powder.

关 键 词：高能球磨 氮化铝 碳热还原法 活化 

分 类 号：TQ174[化学工程—陶瓷工业]