Scholarlink

<p>The sol-gel method synthesized powders composed only of dicalcium silicate at a calcination temperature ranging from 800&#xa0;°C to 1000&#xa0;°C. XRD quantitative characterization indicated that higher temperatures enhance the purity of the β-silicate dicalcium monoclinic crystal system, with the mass fraction of β-dicalcium silicate in the monoclinic lattice increasing from 39.4% at 800&#xa0;°C to 48.56% at 1000&#xa0;°C while the mass fraction of α-dicalcium silicate in the hexagonal lattice decreases from 60.6% at 800&#xa0;°C to 51.44% at 1000&#xa0;°C. The purity of β-dicalcium silicate can reach up to 97% when the temperature increases to 1500&#xa0;°C. The particle size of dicalcium silicate synthesized at 1000&#xa0;°C is approximately 10 to 15&#xa0;μm. It exhibits the dicalcium silicate characteristic spherical grain morphology, plate grain morphology, and other grain morphologies resulting from quenching. During the quenching process, oxygen vacancies are produced because of an insufficiency of oxygen, leading to alterations in atomic coordination.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis and structural characterization of high purity dicalcium silicate

  • 期刊论文

  • 发表日期：

    2025年8月11日

查看全文
  • Miao Zhang,
  • Xiangchun Liu,
  • Junping Deng,
  • Weibo Jiang,
  • Zhongsheng Liu,
  • Long Pang,
  • Yang Deng,
  • Xiaoming Zheng,
  • Jiayan Guan,
  • Hanbi Zhang

摘要

The sol-gel method synthesized powders composed only of dicalcium silicate at a calcination temperature ranging from 800 °C to 1000 °C. XRD quantitative characterization indicated that higher temperatures enhance the purity of the β-silicate dicalcium monoclinic crystal system, with the mass fraction of β-dicalcium silicate in the monoclinic lattice increasing from 39.4% at 800 °C to 48.56% at 1000 °C while the mass fraction of α-dicalcium silicate in the hexagonal lattice decreases from 60.6% at 800 °C to 51.44% at 1000 °C. The purity of β-dicalcium silicate can reach up to 97% when the temperature increases to 1500 °C. The particle size of dicalcium silicate synthesized at 1000 °C is approximately 10 to 15 μm. It exhibits the dicalcium silicate characteristic spherical grain morphology, plate grain morphology, and other grain morphologies resulting from quenching. During the quenching process, oxygen vacancies are produced because of an insufficiency of oxygen, leading to alterations in atomic coordination.