Ca0.9Ce0.1Ti0.8Al0.2SiO5在水热作用下的化学稳定性

Chemical Durability of Ca0.9Ce0.1Ti0.8Al0.2SiO5 at Hydrothermal Conditions

作者：任雪潭(西南科技大学四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地)；滕元成(西南科技大学四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地)；李玉香(西南科技大学四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地)；宫淼淼(新疆建设职业技术学院建筑材料工程系)

Author：Ren Xuetan(State Key Lab.Cultivation Base for Nonmetal Composite and Functional Materials,Southwest Univ. of Sci. and Technol.)；Teng Yuancheng(State Key Lab.Cultivation Base for Nonmetal Composite and Functional Materials,Southwest Univ. of Sci. and Technol.)；Li Yuxiang(State Key Lab.Cultivation Base for Nonmetal Composite and Functional Materials,Southwest Univ. of Sci. and Technol.)；Gong Miaomiao(Building Materials Eng. Dept.,Xinjiang Technical College of Building Univ.)

收稿日期：2012-08-03 年卷（期）页码：2013,45(2):162-166

期刊名称：工程科学与技术

Journal Name：Advanced Engineering Sciences

关键字：榍石固溶体;浸出率;稳定性;铈

Key words：sphene solid solution;leaching rate;chemical durability;cerium

基金项目：国家自然科学基金资助项目(10775113)；四川省教育厅资助科研项目(10ZB013)；西南科技大学四川省非金属复合与功能材料重点实验室开放基金资助项目(10zxfk07)

中文摘要

通过固相法合成掺铈榍石固溶体（Ca0.9Ce0.1Ti0.8Al0.2SiO5），采用PCT粉末浸泡试验法，借助X射线衍射（XRD）、扫描电镜（SEM）、电感耦合等离子体发射光谱（ICP-OES）等分析测试手段，研究掺铈榍石固溶体在热液作用下的稳定性。实验结果表明，掺铈榍石固化体在不同条件下（温度150~200℃，0.476~1.554 MPa，pH值5~9），都具有良好的稳定性。随着浸泡时间的增加，各元素的归一化浸出率逐渐降低并保持在较低水平。

英文摘要

The sphene doped cerium(Ca_0.9Ce_0.1Ti_0.8Al_0.2SiO₅) was synthesized by solid-reaction.The chemical durability was investigated with a long-term product consistency test (PCT) by X-ray diffraction (XRD), scanning electron microscopy(SEM),and inductively coupled plasma atomic emission spectrometry (ICP-OES).The results indicated that the synthesized sphene has good chemical durability under coupling effect of hydrothermal conditions of 150~200℃, 0.476~1.554 MPa, and 5~9 pH. With the increase of soaking time, the normalized leaching rate of elements gradually decreases and maintaines at a lower level.

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论文摘要

Ca0.9Ce0.1Ti0.8Al0.2SiO5在水热作用下的化学稳定性

Chemical Durability of Ca<sub>0.9</sub>Ce<sub>0.1</sub>Ti<sub>0.8</sub>Al<sub>0.2</sub>SiO<sub>5</sub> at Hydrothermal Conditions