摘要
采用等离子体原子发射光谱分析(ICP-AES)、热分析(DSC)、X射线衍射分析(XRD)、维氏显微硬度测试和扫描电镜(SEM)分析研究热处理对合作单位博德精工提供的CaO-MgO-Al2O3-SiO2系微晶玻璃瓷砖釉面力学性能的影响,以期提高耐磨性能和优化热处理工艺。分别采用传统的两步法和一步法处理瓷砖釉面,结果表明,试样经过750℃保温120min—950℃保温90min和900℃保温2h处理后均析出透辉石、钡长石和氧化锆,大约能够使釉面硬度提高15%和13.6%。另外,试样经940℃保温5min处理后,发生氧化锆相变增韧,硬度提高约11.5%。考虑到工厂的生产实际,氧化锆相变增韧处理是提高瓷砖秞面力学性能的最佳热处理方式。
The effect of thermal treatment on mechanical properties of glass-ceramic glaze surface for floor tiles made from CaO-MgO-Al2O3-SiO2 system by Bode was investigated by using inductively coupled plasma-atomic emission spectrometry （ICP-AES）, differential scanning calorimetry （DSC）, X-ray powder diffraction （XRD）, micro-hardness testing and scanning electron microscopy （SEM） respectively. Traditional two-step and one-step thermal treatments were used on the glaze. Results showed that, once the primary glass-ceramics being heated at 750℃ for 2 hours prior to held at 950℃ for 90rain and 900℃ for 2 hours, its surface hardness or rigidity was increased by roughly 15% or 13.6% respectively. Fine diopside, celsian, ZrO2 were both precipitated during heat treatments. Once the primary glass-ceramics being heated at 940℃ for 5min, its surface hardness or rigidity was increased approximately by 11.5% with help of transformation toughening of zirconia. Taking industrial practice into consideration, optimal process would be the zirconia toughening in order to improve its surface properties.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2011年第6期54-57,70,共5页
China Ceramics
