CAJ | 학술논문

应用高能球磨机，用Ti和C粉末在室温下合成了纳米级TiC晶粒，并对合成后的粉末进行了微观组织分析。实验结果表明：用机械合金化(MA)法可以在比较短的时间内合成TiC粉末，其合成机理为机械碰撞诱发的自蔓延反应机理。经过球磨反应可以得到平均颗粒大小为5.641μm，并且具有10nm左右的纳米晶粒TiC粉末。 DAT分析表明，利用加热方法合成TiC必须在636.5℃以上才能进行，而通过球磨工艺可以使该合成过程在室温下进行。
응용고능구마궤， 용Ti화C분말재실온하합성료납미급TiC정립， 병대합성후적분말진행료미관조직분석。 실험결과표명： 용궤계합금화(MA)법가이재비교단적시간내합성TiC분말， 기합성궤리위궤계팽당유발적자만연반응궤리。 경과구마반응가이득도평균과립대소위5.641μm， 병차구유10nm좌우적납미정립TiC분말。 DAT분석표명， 이용가열방법합성TiC필수재636.5℃이상재능진행， 이통과구마공예가이사해합성과정재실온하진행。
The fabrication of nanocrystalline TiC by a high-energy ball milling at room temperature was studied. The results show that TiC powder is fabricated within short time. The formation mechanism is self-propagating reactive synthesis induced by mechanical alloying. The particle size of TiC is 5.64 　μm， and crystalline grain of TiC is 10 　nm. The process of nanocrystalline TiC fabricated is occurred at room temperature.