AIN纳米微粉的微波合成

Nanometer aluminum nitride powder with purity higher than 98wt% and diameter in the range of 5-80nm has been obtained by microwave heating using α-Al2O3、Al(OH)3、 colloidal Al(OH)3 as the source for aluminum, and phenolformaldehyde resin, char, nanometer carbon black powder as the source for carbon, respectively. The effect of the type of starting materials and synthesis conditions on the purity and the size of the nanometer AlN powder has been analyzed in this paper.     

碳化硅纳米晶须的微波合成

SiC nanometer whisker, whose diameter was about 50nm and purity was 98.54%, was synthesized by microwave heating in an atmosphere of argon. Char pyrolyzed phenolformaldehyde resin and SiO2 nanometer powder were used as starting materials. The properties of the whisker were determined by XRD and TEM. The mechanism for synthesizing SiC nanometer whisker was discussed.     

AlN纳米微粉的微波合成

AIN陶瓷作为一种新型的陶瓷材料，具有优异的力学性能、导热性能、电绝缘性能、抗氧化性能和机加工性能．其突出优点是具有高的热导率和低的热膨胀系数，在电子工业领域有着重要的用途．目前，制备AIN粉末的方法很多［l，2］，但用微波加热法合成AIN粉末尚未见文献报导，本文就     

双重加热法合成碳化硅晶须的研究

本文给出了一种低成本、适用于大批量生产碳化硅晶须的新方法,以炭黑和SiO2微粉为原料对用双重加热法合成碳化硅晶须进行了研究.研究表明,利用双重加热技术可以在较低合成温度1300℃下、较短合成时间1.5h内得到平均直径为0.3μm、长度为10～40μm、生成率达81;的碳化硅晶须.