金刚石与磨料磨具工程
金剛石與磨料磨具工程
금강석여마료마구공정
DIAMOND & ABRASIVES ENGINNERING
2014年
4期
70-73
,共4页
Cu/TiB2%金刚石%自蔓延高温烧结
Cu/TiB2%金剛石%自蔓延高溫燒結
Cu/TiB2%금강석%자만연고온소결
Cu/TiB2%diamond%self-propagation high temperature sintering
采用 Ti/Cu/B/Diamond 粉体为原料，通过自蔓延高温反应技术，制备了 Cu-TiB2结合剂金刚石复合材料。采用 X 射线衍射(XRD)、扫描电镜(SEM)结合能谱仪(EDS)等技术表征和分析试样。研究结果表明：原料经自蔓延高温烧结后，产物主相为 Cu、TiB2和金刚石。当 TiB2(20%)质量分数较低时，反应后在金刚石表面形成极少量的颗粒附着物；TiB2质量分数较高时(30%~60%)，在金刚石表面会形成富 Cu-B 相与 B4 C 相，这些相在金刚石表面呈现出独特的凹凸不平的圆球状镀覆状态。
採用 Ti/Cu/B/Diamond 粉體為原料，通過自蔓延高溫反應技術，製備瞭 Cu-TiB2結閤劑金剛石複閤材料。採用 X 射線衍射(XRD)、掃描電鏡(SEM)結閤能譜儀(EDS)等技術錶徵和分析試樣。研究結果錶明：原料經自蔓延高溫燒結後，產物主相為 Cu、TiB2和金剛石。噹 TiB2(20%)質量分數較低時，反應後在金剛石錶麵形成極少量的顆粒附著物；TiB2質量分數較高時(30%~60%)，在金剛石錶麵會形成富 Cu-B 相與 B4 C 相，這些相在金剛石錶麵呈現齣獨特的凹凸不平的圓毬狀鍍覆狀態。
채용 Ti/Cu/B/Diamond 분체위원료，통과자만연고온반응기술，제비료 Cu-TiB2결합제금강석복합재료。채용 X 사선연사(XRD)、소묘전경(SEM)결합능보의(EDS)등기술표정화분석시양。연구결과표명：원료경자만연고온소결후，산물주상위 Cu、TiB2화금강석。당 TiB2(20%)질량분수교저시，반응후재금강석표면형성겁소량적과립부착물；TiB2질량분수교고시(30%~60%)，재금강석표면회형성부 Cu-B 상여 B4 C 상，저사상재금강석표면정현출독특적요철불평적원구상도복상태。
Cu-TiB2 boned diamond composites were fabricated by self-propagation high temperature sintering (SHS)from Ti/Cu/B/Diamond powders.The samples were analyzed by XRD,SEM with EDS.The results showed that Cu-TiB2 boned diamond composites were obtained by SHS.The main phases of the products were Cu,TiB2 and diamond by SHS from every raw material.When TiB2 mass fraction was higher (20%),small amounts of particle attachments were formed on the diamond after SHS reaction.With TiB2 mass fraction≧30%, Cu-B rich phase and B4 C phase were formed on the diamond.These obtained phases on the diamond show unique spherical and uneven plating state.
