功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2015年
z1期
63-66
,共4页
孙慧%黄永前%杨芃%余正茂%欧甜
孫慧%黃永前%楊芃%餘正茂%歐甜
손혜%황영전%양봉%여정무%구첨
花岗岩废渣%微晶玻璃%晶化温度%晶相组成%力学性能
花崗巖廢渣%微晶玻璃%晶化溫度%晶相組成%力學性能
화강암폐사%미정파리%정화온도%정상조성%역학성능
granite residual%glass-ceramics%crystallization temperature%crystal composition%mechanical property
以花岗岩废渣为主要原料,用熔融法制备了以 ZrO 2为晶核剂的 R2 O-MgO-Al2 O3-SiO2(RMAS)系微晶玻璃.采用差示扫描量热法(DSC)、X 射线衍射(XRD)、扫描电子显微镜(SEM)等测试方法研究了晶化温度对 RMASZ 系微晶玻璃的晶相组成、显微结构以及力学性能的影响.结果表明,随晶化温度升高,玻璃中依次析出翡翠石、镁铝硅酸盐、顽火辉石、四方ZrO 2、尖晶石晶体.经780℃核化1 h、1160℃晶化2 h热处理后,其四点抗弯强度达到114.56 MPa.
以花崗巖廢渣為主要原料,用鎔融法製備瞭以 ZrO 2為晶覈劑的 R2 O-MgO-Al2 O3-SiO2(RMAS)繫微晶玻璃.採用差示掃描量熱法(DSC)、X 射線衍射(XRD)、掃描電子顯微鏡(SEM)等測試方法研究瞭晶化溫度對 RMASZ 繫微晶玻璃的晶相組成、顯微結構以及力學性能的影響.結果錶明,隨晶化溫度升高,玻璃中依次析齣翡翠石、鎂鋁硅痠鹽、頑火輝石、四方ZrO 2、尖晶石晶體.經780℃覈化1 h、1160℃晶化2 h熱處理後,其四點抗彎彊度達到114.56 MPa.
이화강암폐사위주요원료,용용융법제비료이 ZrO 2위정핵제적 R2 O-MgO-Al2 O3-SiO2(RMAS)계미정파리.채용차시소묘량열법(DSC)、X 사선연사(XRD)、소묘전자현미경(SEM)등측시방법연구료정화온도대 RMASZ 계미정파리적정상조성、현미결구이급역학성능적영향.결과표명,수정화온도승고,파리중의차석출비취석、미려규산염、완화휘석、사방ZrO 2、첨정석정체.경780℃핵화1 h、1160℃정화2 h열처리후,기사점항만강도체도114.56 MPa.
With granite residual as the raw materials,R2 O-MgO-Al2 O 3-SiO 2-ZrO 2 (RMASZ)system glass-ce-ramics containing ZrO 2 as nucleation agent were prepared by melting technique.The crystal phase composition, microstructure and mechanical properties were investigated by means of differential scanning calorimetry (DSC),X-ray diffraction (XRD)and scanning electron microscopy (SEM),etc.Results indicate that jadeite, magnesium aluminum silicate,enstatite,t-ZrO 2 and spinel crystallized orderly with the increasing crystallization temperature.Furthermore,the glass-ceramics,nucleated at 780 ℃ for 1 h and crystallized at 1 1 60 ℃ for 2 h, have excellent mechanical properties and the four-point flexural strength was 1 14.56 MPa.