Институт сверхтвердых материалов им. В.Н. Бакуля НАН Украины
Владислав Владиславович Лисняк
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A method for obtaining phosphatic bronzes niobium and bronzoids with MPTBp structures comprises mixing equimolar quantity of natrium- and/or calcium-iferous components, phosphate-iferous component, as well as oxides of transition metals with following two-stage heating of the obtained mixture to high temperature. As natrium- and/or calcium-iferous components phosphates natrium or calcium are used, correspondingly. Two-stage heating is made in this way: at the first stage heating to 950-1050 K in the open air is performed during 25-35 min. At the second stage a mixture is subjected to pressure not less than 2 giga-PA at temperature of 1373 K during 20 min.
UAU201004456U2010-04-162010-04-16METHOD FOR OBTAINING PHOSPHATIC NIOBIUM BRONZES AND BRONSOIDS WITH MPTBp STRUCTURE
UA53566U
(en)