Research Progress of Quantitative Determination of the Amorphous Phase in Fly Ash
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摘要:
利用粉煤灰这种工业固废制备矿物聚合材料时，其活性来源主要是处于亚稳定态的非晶相，而非晶相含量的多少与由其制备的材料性能密切相关。文中综述了目前定量分析粉煤灰中非晶相含量的常用测试方法及分析结果，重点给出了XRD-Rietveld法、选择性化学溶解法两种方法的基本原理、应用及优缺点，并提出了目前研究中存在的主要问题及可能采取的途径，为粉煤灰中非晶相定量分析提供了思路和方向。
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关键词:
- 粉煤灰 /
- 非晶相 /
- 定量分析 /
- XRD-Rietveld法 /
- 选择性化学溶解法
Abstract:The main parameters in the control of the preparation mineral polymer using fly ash, as a by-product of coal-fired steam powder plants, is the composition and the content of the amorphous phase in the fly ash. The popular methods to quantitative determination of the amorphous phase were summarized, especially the Rietveld X-ray powder diffraction (XRPD) method and selective chemical treatments, including their principles, merits and demerits, respectively. On the describes of these methods and its applications, the major questions and development directions were put forward, which sorting out the amorphous phase research thoughts and providing the basic direction for the amorphous phase determination of fly ash.
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