检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:李文军[1] 李壮[1] 许积礼 金毅 陶导先[1]
机构地区:[1]北京科技大学冶金化工材料科技开发中
出 处:《粘接》1995年第4期12-15,共4页Adhesion
摘 要:沉淀法制备的氧化钢用不同的温度灼烧,再与多聚磷酸盐、促进剂、添加剂等组份调酸,发现当氧化铜灼烧温度在850℃时,压剪强度达80.8MPa。用差热-热重分析,温度在1050℃范围内没有相变。未经灼烧和650℃、940℃、1050℃灼烧的氧化铜粉末样品,经X射线衍射实验,证实氧化铜全部为单斜晶型。氧化铜晶粒随着温度的升高长大,改变了低温时细晶粒聚集的疏松收集合体,降低了表面能。排除了氧化铜晶型改变对胶粘剂强度的影响因素。The copper oxides, which are prepared with precipitating technique and are calcined with different temperature, are used to make adhesive with polyphos phate,promoter, addition agent and others.If the copper oxide are calcined at 850℃,the adhesive strength is 80. 8MPa,Different thermal and thermogravimetric analgsis have proved that copper oxides are not phase change, the copper oxide, which are not calcined or are calcined at 650℃,940℃, 1050℃, have proved that all of the copper oxide are monoclinil crystal, alongside the growth of temperature,the sige of copper oxides increases, the particle state of aggregation become compact,the surface energy decremes. All of this fully have proved that the adhesive strength is not affected with crystal phase change of the copper oxide.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.3