期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
20℃下碳酸钙微粉对铝酸钙水泥水化行为的影响
1
作者 刘明杨 王赛鑫 +4 位作者 马振友 晋冬梅 周文英 穆元冬 叶国田 《耐火材料》 CAS 北大核心 2022年第3期206-209,213,共5页
采用板状刚玉颗粒和细粉、α-Al_(2)O_(3)微粉、碳酸钙微粉、铝酸钙水泥(CAC)等原料制备了刚玉质浇注料,研究了20℃下碳酸钙微粉对CAC水化速率、水化产物的相组成和显微结构的影响,同时也探究了碳酸钙微粉加入量(0~1.5%,w)对CAC结合刚... 采用板状刚玉颗粒和细粉、α-Al_(2)O_(3)微粉、碳酸钙微粉、铝酸钙水泥(CAC)等原料制备了刚玉质浇注料,研究了20℃下碳酸钙微粉对CAC水化速率、水化产物的相组成和显微结构的影响,同时也探究了碳酸钙微粉加入量(0~1.5%,w)对CAC结合刚玉质浇注料养护过程中强度的影响。结果表明:在20℃下,未加入碳酸钙微粉时,CAC水化速率较慢,水化产物主要为针柱状的CAH_(10);加入碳酸钙微粉后,CAC水化速率明显提升,且其主要的水化产物从针柱状的CAH_(10)转变成片状的C_(4)ACH_(11)。碳酸钙微粉的引入加速了CAC的水化,使得水化产物数量增多,CAC结合浇注料的养护强度显著提升。 展开更多
关键词 铝酸钙水泥 刚玉质浇注料 碳酸钙微粉 水化产物 养护强度
下载PDF
Dermatology recorded in oracle bone inscriptions
2
作者 Xu Xuegang ma Huiqun +7 位作者 ma zhenyou Zhang Rong Zhao Shilin Wei Huachen Lebwhol mark Zhang Jianzhong Gao Xinghua Chen Hongduo 《Chinese Medical Journal》 SCIE CAS CSCD 2014年第10期1992-1993,共2页
Oracle bone inscriptions,the earliestform of Chinese writings,were used from the Shang dynasty to the Western Zhou dynasty (1 600 BC 1 000 BC).These inscriptions were carved on turtle shells and animal bones,which w... Oracle bone inscriptions,the earliestform of Chinese writings,were used from the Shang dynasty to the Western Zhou dynasty (1 600 BC 1 000 BC).These inscriptions were carved on turtle shells and animal bones,which were primarily used for divination at that time.Among over 150 000 oracle bone pieces excavated,41 956pieces were collected in the book named Jia Gu Wen He Ji in Chinese (Collection and Analyses of Oracle Bone Inscriptions).So far about 4 500 oracle bone inscriptions have been interpreted and about 2 600 have been decoded.Among those,about 1 056 oracle bone inscriptions have been widely accepted by authorities in China and abroad.1 Here we scrutinized the well-interpreted oracle bone inscriptions and selected 95 characters related to medicine and dermatology for discussion. 展开更多
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部