TiO2掺杂Nd2O3-Al2O3-SiO2玻璃晶化过程中新相的形成

IF 1.5 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Transactions of the Indian Ceramic Society Pub Date : 2022-01-02 DOI:10.1080/0371750X.2022.2044382

S. Baghshahi, C. Sorrell, M. Brungs, H. Kim

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引用次数: 0

摘要

通过在1550°C下熔融制备了一般成分为xNd2O3.20Al2O3.（80–x）SiO2和15Nd2O3.yAl2O3.（85–y）SiO2（x=10、15、20和y=20、25、30）的玻璃。该玻璃还含有不同量的TiO2作为成核剂。然后研究了未掺杂和含TiO2的微晶玻璃的微观结构演变。玻璃的结晶在1000°至1250°C的范围内是可行的。对结晶速率进行了评估。TiO2的添加仅影响生长速率，而不影响本研究中观察到的晶相的成核。SiO2含量较高的玻璃显示出生长速率的上升。研究发现，当TiO2存在时，形成了一种新的未报道的晶体化合物，其化学计量组成为TiO2。Nd2O3.Al2O3.2SiO2

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The Formation of a New Phase during Crystallization of TiO2-Doped Nd2O3-Al2O3-SiO2 Glasses

Glasses with the general compositions xNd 2O3.20Al2O3.(80–x)SiO2 and 15Nd2O3.yAl2O3.(85–y)SiO2 (x = 10, 15, 20, and y = 20, 25, 30) were prepared by melting at 1550°C. The glasses also contained varying amounts of TiO2 as nucleating agent. The microstructural evolution of the undoped and TiO2-containing glass-ceramics was then studied. Crystallization of the glasses was feasible in the range 1000° to 1250°C. The crystallization rates were evaluated. TiO2 addition influenced only the growth rate and not the nucleation of the crystalline phases observed in this study. Glasses of higher SiO2 content showed a rise in growth rate. It was found that when TiO2 was present, a new unreported crystalline compound with the stoichiometric composition of TiO2.Nd2O3.Al2O3.2SiO2 was formed GRAPHICAL ABSTRACT

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来源期刊

Transactions of the Indian Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

2.40

自引率

8.30%

发文量

审稿时长

2.3 months

期刊介绍： Transactions of the Indian Ceramic Society is a quarterly Journal devoted to current scientific research, technology and industry-related news on glass and ceramics. The Journal covers subjects such as the chemical, mechanical, optical, electronic and spectroscopic properties of glass and ceramics, and characterization of materials belonging to this family. The Editor invites original research papers, topical reviews, opinions and achievements, as well as industry profiles for publication. The contributions should be accompanied by abstracts, keywords and other details, as outlined in the Instructions for Authors section. News, views and other comments on activities of specific industries and organizations, and also analyses of industrial scenarios are also welcome.