CAJ | 학술논문

综述了纳米硬质合金制备工艺的研究与发展.比较了生产纳米粉末的两种不同方法的优缺点,重点介绍了喷雾转化法.实验数据表明,晶粒长大抑制剂的种类、加入方法对晶粒长大有很大的影响.最后阐述了目前较流行的烧结工艺以及适用于纳米硬质合金烧结的等离子活化烧结和微波烧结.
종술료납미경질합금제비공예적연구여발전.비교료생산납미분말적량충불동방법적우결점,중점개소료분무전화법.실험수거표명,정립장대억제제적충류、가입방법대정립장대유흔대적영향.최후천술료목전교류행적소결공예이급괄용우납미경질합금소결적등리자활화소결화미파소결.
The research and development of preparation processing of nanosize cemented carbide are reviewed. The merits and drawbacks of two different ways of producing nanosize powder are compared, and the spray conversion processing is introduced in detail. The experimental data show that the type of grain growth suppressor and the way in which the suppressor is added have a great influence on grain growth. Finally a popular sintering processing and advanced plasma activation sintering and microwave sintering techniques are addressed.