CAJ | 학술논문

利用X射线衍射(XRD)和透射电子显微镜(TEM)对不同MgO掺量的阿利特结构演变进行了研究.结果表明:当MgO掺量为0.5wt％时,T1和M1型共存;当MgO掺量为1.0wt％时,稳定为M1型;当MgO掺量在1.5wt％以上时,稳定为M3型.基于XRD数据计算得到了不同晶型阿利特的伪六方亚晶胞参数,结果显示各晶型的亚晶胞参数值非常接近.通过选区电子衍射(SAED)和高分辨透射电子显微像(HRTEM)对各晶型中的调制结构进行了观察.结果表明:各晶型阿利特中的超晶胞反射斑点坐标均可用相应的线形表达式描述,调制结构可以在HRTEM像中观察到,并以波状衬度的形式展现,其方向平行于亚晶胞中相应的晶面.
이용X사선연사(XRD)화투사전자현미경(TEM)대불동MgO참량적아리특결구연변진행료연구.결과표명:당MgO참량위0.5wt％시,T1화M1형공존;당MgO참량위1.0wt％시,은정위M1형;당MgO참량재1.5wt％이상시,은정위M3형.기우XRD수거계산득도료불동정형아리특적위륙방아정포삼수,결과현시각정형적아정포삼수치비상접근.통과선구전자연사(SAED)화고분변투사전자현미상(HRTEM)대각정형중적조제결구진행료관찰.결과표명:각정형아리특중적초정포반사반점좌표균가용상응적선형표체식묘술,조제결구가이재HRTEM상중관찰도,병이파상츤도적형식전현,기방향평행우아정포중상응적정면.
Structural evolution for alite with various doping amounts of MgO was investigated via X-ray diffraction (XRD) and transmission electron microscopy (TEM).T1 and M1 coexist in alite with MgO doping of 0.Swt％,M1 was stabilized with MgO doping of 1.0wt％,and M3 was stabilized with MgO doping above 1.5wt％.The pesudohexagonal subcells lattice constants of all the modifications were calculated based on XRD data,and they were nearly identical.Modulated structures in each modification were observed via selected area electron diffraction (SAED) and high resolution transmission electron microscopy (HRTEM).The coordinates of the superce11 reflections in various modifications were described as relative linear expressions and the modulated structures were observed in HRTEM images as wavy contrast streakings parallel to the corresponding subcell planes.