...
【24h】

A 2000-year perspective on indentation crack resistance and brittleness of glass

机译:2000年玻璃抗压痕裂纹和脆性的研究

获取原文
获取原文并翻译 | 示例
           

摘要

Data on micromechanical properties of ancient and medieval glass fragments and glasses of early modern and today's manufacturing were compiled to offer a tentative look on changes in the brittleness of glass over the past 2000 years. Chronology of glass making was based on glass chemistry using rare earth element (REE) pattern, fluxing agents and provenance analysis while cracking and brittleness were evaluated from Vickers indentation in the course of the mean crack initiation load CR and the crack length-to-half diagonal ratio c/a. A structural analysis revealed that CR increases and c/a decreases with increasing molar volume i.e. decreasing atomic packing fraction, which allows us to classify periods of high and low crack-resistant and brittle glasses along the time line of historic glass technology. (c) 2014 Elsevier B.V. All rights reserved.
机译:收集了有关古代和中世纪玻璃碎片以及早期现代玻璃和今天制造的玻璃的微机械性能数据,以初步了解过去2000年玻璃的脆性变化。玻璃制造的时间顺序基于玻璃化学,使用稀土元素(REE)模式,助熔剂和物源分析,同时在平均裂纹起始载荷CR和平均裂纹长度过程中,通过维氏压痕评估裂纹和脆性。对角比c / a。结构分析表明,CR随着摩尔体积的增加而增加,而c / a则随着原子堆积分数的降低而降低,这使我们能够沿着历史玻璃技术的时间线来区分高抗裂性和低脆性玻璃的时期。 (c)2014 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号