A novel and facile route for synthesis of fine tricalcium silicate powders

作者：Wu, Meng; Wang, Tao^*; Wang, Yangyang; Li, Feng; Zhou, Miao; Wu, Xin

来源：Materials Letters, 2018, 227: 187-190.

DOI：10.1016/j.matlet.2018.05.029

• Tricalcium silicate
• Particle size distribution
• Sintering
• Crystal growth
• Wet-chemical route

Tricalcium silicate (C3S) powders were successfully prepared via a novel and facile wet-chemical route with CaC2O4 and Si(OC2H5)(4) (TEOS) as raw materials. Pure C3S powders with small particle size could be synthesized at 1400 degrees C for 6 h. The effects of sintering temperatures on the particle size distribution of C3S powders were also investigated. The results revealed that the mean particle sizes of different sintered C3S powders were 2.11, 2.23, 2.92 and 4.01 mu m at sintering temperatures of 1300 degrees C, 1350 degrees C, 1400 degrees C and 1450 degrees C, with the specific surface areas of 2850, 2700, 2060 and 1500 m(2)/kg, respectively. The results indicated that the variations of sintering temperature had a great influence on the particle size: higher temperatures improve diffusion of ions to the interstitial sites and therefore a faster grain growth.

• 出版日期2018-9-15
• 单位南京航空航天大学