烧结参数对SrO-CaO-ZnO-Al2O3-B2O3-SiO2-TiO2基玻璃密封胶致密化、微观结构和力学性能的影响

IF 1.4 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Science of Sintering Pub Date : 2023-01-01 DOI:10.2298/sos230222025b

P. Barick, B. Saha

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引用次数: 0

摘要

本研究在不同温度、时间和升温速率下，对SrO-CaO-ZnO-Al2O3-B2O3-SiO2-TiO2玻璃体系进行了烧结实验。在750 ~ 850℃范围内，样品密度随温度的升高而增大。此后，没有注意到密度的显著改善。保温时间和升温速率对密度的提高无显著影响。从850年?C以后，样品显示出XRD证实的结晶相峰。SEM图像显示，随着孔隙率的降低，微观组织的致密度逐渐增加。随着烧结温度的升高，HV的增加是由于密度的同时增加。在850 ~ 950℃范围内烧结的试样硬度最高。加热1小时，加热速率为8?C/min。杨氏模量的变化趋势与硬度相似。退火和烧结玻璃的CTE为10.2 ?10 ?6和9.8 ?10 6 / ?C,分别。

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Effect of sintering parameters on the densification, microstructure, and mechanical properties of SrO-CaO-ZnO-Al2O3-B2O3-SiO2-TiO2 based glass sealant

In this study, sintering experiments were carried out on SrO-CaO-ZnO-Al2O3-B2O3-SiO2-TiO2 glass system with varying temperature, time and heating rates. The density of samples increases with the increase in temperature from 750 to 850?C. Thereafter, significant improvement in density is not noticed. The dwell time and heating rate have no marked impact on the improvement in density. From 850?C onwards, samples exhibit the peaks of crystalline phases confirmed by XRD. SEM images show the progressive increase in the compactness of microstructure with the reduction in porosity. The increase in HV with the increase in sintering temperature is attributed to the simultaneous increase in density. The highest hardness was obtained for the sample sintered within 850-950?C for 1h and a heating rate of 8?C/min. The Young's modulus is found to be of similar trend, like hardness. The CTE of annealed and sintered glass is 10.2 ? 10?6 and 9.8 ? 10?6/?C, respectively.

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来源期刊

Science of Sintering 工程技术-材料科学：硅酸盐

CiteScore

2.50

自引率

46.70%

发文量

审稿时长

3.3 months

期刊介绍： Science of Sintering is a unique journal in the field of science and technology of sintering. Science of Sintering publishes papers on all aspects of theoretical and experimental studies, which can contribute to the better understanding of the behavior of powders and similar materials during consolidation processes. Emphasis is laid on those aspects of the science of materials that are concerned with the thermodynamics, kinetics and mechanism of sintering and related processes. In accordance with the significance of disperse materials for the sintering technology, papers dealing with the question of ultradisperse powders, tribochemical activation and catalysis are also published. Science of Sintering journal is published four times a year. Types of contribution: Original research papers, Review articles, Letters to Editor, Book reviews.