不同煅烧条件下合成β-C_2S的正电子湮没和水化研究

STUDY ON THE POSITRON ANNIHILATION AND HYDRATION OF β-C_2S SYTHESIZED UNDER DIFFERENT CALCINATION CONDITIONS

采用正电子湮没技术研究了不同煅烧条件下合成的β-C_S正电子寿命谱,按照正电子捕获理论,对实验所得寿命谱参数与β-C_S微观结构缺陷的关系进行了分析和讨论。此外,还就β-C_S的烧成条件、缺陷浓度和水化活性的关系进行了研究和讨论。

The positron life spectrums of β-C_2S which had been sythesized under different calcination conditions were studied by use of Positron Annihilation Technique(PAT). According to the theory of positron capture, the relations between the parameters of life spectrum obtained from this test and the microstructural defect of β-C_2S were analysed and discussed. Otherwise, the relations of calcination conditions of β-C_2S, the defect concentration and the hydration activity were studied.