Study on properties of inert anode of NiFe_2O_4 spinel with TiO_2;
添加TiO_2对镍铁尖晶石惰性阳极材料性能的影响
Effect of MnO_2 on properties of inert anode of NiFe_2O_4 spinel;
MnO_2对镍铁尖晶石惰性阳极材料性能的影响
Study on high-temperature electrical conductivity of NiFe_2O_4 spinel with TiO_2;
掺杂TiO_2的镍铁尖晶石的高温导电性
In order to enhance the performance of nickel ferrite inert anodes, a nickel ferrite inert anode with 15%(in mass, the same below) excess NiO was prepared by the powder metallurgy method using NiO, Fe_2O_3 and a little V_2O_5 as raw materials.
为了提高镍铁尖晶石的性能,以NiO,Fe2O3和微量V2O5为原料,采用粉末冶金法制备了含有过量15%(以质量计,下同)NiO,掺杂V2O5的镍铁尖晶石惰性阳极。
Black pigments are complex, involving franklinite (ZnFe 2O 4), magnetite (Fe 3O 4) and hausmannite (MnMn 2O 4).
采用 X-射线衍射对甘肃马家窑文化时期马家窑类型 (公元前 32 80—公元前 2 740年 )彩陶颜料进行了分析研究 ,表明白色颜料以石膏与方解石为主 ,改变了以往认为白色颜料为高岭土的观点 ,并阐明了石膏作为彩陶白色颜料的工艺过程 ;黑色颜料以锌铁尖晶石、磁铁矿以及黑锰矿为主 ,首次在彩陶颜料中发现了锌铁尖晶
It was shown that the red pigment was made from hematite ( Fe2 O3) ,and the black pigments were chiefly made from franklinite ( Zn Fe2 O4) ,magnetite( Fe3O4) and hausmannite( Mn Mn2 O4) .
采用 X-射线衍射谱及 X-荧光光谱对马家窑文化半山、马厂类型 (约 2 74 0 a BC— 2 0 50 aBC)彩陶颜料进行了分析研究 ,第一次明确了黑、红复彩陶器的颜料成分 ,表明黑色颜料以磁铁矿、黑锰矿或锌铁尖晶石为主 ;红色颜料以赤铁矿为主 ,并首次发现锌铁尖晶石 。
