The powder crystals of RMnO3(R=Er, Tm) with hexagonal and orthorhombic structures were prepared under hydrothermal condi......

采用失重法与电化学方法,研究了Cu-Zn及BeCoCu铜合金表面BTA钼酸盐-锰酸盐的化学复合转化膜.首先,在不同的BTA钼酸盐-锰酸盐钝化剂......

研究了锰酸盐与有机物复合作用用于镀锌板无铬钝化的最佳配方,应用极化曲线和交流阻抗的方法测试了镀锌层锰酸盐有机复合钝化膜在0......