CAJ | 학술논문

采用Ti/Al/B/金刚石粉体为原料，通过自蔓延高温反应技术，制备了 Al-TiB2结合剂金刚石复合材料，在金刚石表面合成了碳硼化铝涂层。采用X射线衍射(XRD)、扫描电镜(SEM)结合能谱仪(EDS)分析试样。研究结果表明：各种原料经自蔓延高温烧结后，产物的主相为 Al、TiB2和金刚石。同时当 Al质量分数较高时(60%~80%)，在金刚石表面形成了致密的碳硼化铝涂层，呈薄片状，金刚石附近也生长出许多碳硼化铝晶粒，尺寸可达到几十微米。但是当 Al 质量分数较低(40%和50%)时，金刚石会发生严重的碎裂。
채용Ti/Al/B/금강석분체위원료，통과자만연고온반응기술，제비료 Al-TiB2결합제금강석복합재료，재금강석표면합성료탄붕화려도층。채용X사선연사(XRD)、소묘전경(SEM)결합능보의(EDS)분석시양。연구결과표명：각충원료경자만연고온소결후，산물적주상위 Al、TiB2화금강석。동시당 Al질량분수교고시(60%~80%)，재금강석표면형성료치밀적탄붕화려도층，정박편상，금강석부근야생장출허다탄붕화려정립，척촌가체도궤십미미。단시당 Al 질량분수교저(40%화50%)시，금강석회발생엄중적쇄렬。
Al-TiB2 boned diamond composites were fabricated by self-propagation high temperature sintering SHS from Ti Al B Diamond powders The samples were analyzed by XRD SEM and EDS It was shown that Al-TiB2 boned diamond composites were obtained by SHS The main phases of the products were Al TiB2 and diamond by SHS from every raw material Meanwhile the Al4 BC coating was formed on the face of diamond When mass fraction of Al was higher 60%~80% dense Al4 BC coating with thin flake was formed Meanwhile many Al4 BC grains also grown neighbor the diamond These grains had dozes of micron With mass fraction of Al decreasing to 40% and 50%diamond broke because of its graphitization.