Mechanical properties of Nb2O5 and Ta2O5 prepared by different procedures

被引：21
|
作者：
Shcherbina, O. B. [1 ]
Palatnikov, M. N. [1 ]
Efremov, V. V. [1 ]
机构：
[1] Russian Acad Sci, Tananaev Inst Chem & Technol Rare Elements & Mine, Kola Sci Ctr, Apatity 184209, Murmansk Oblast, Russia
来源：
INORGANIC MATERIALS | 2012年 / 48卷 / 04期
关键词：
INDENTATION; HARDNESS;
D O I：
10.1134/S0020168512040139
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have studied the mechanical properties of niobium pentoxide and tantalum pentoxide ceramics prepared by a conventional ceramic processing technique and by exposure to high-intensity light (HIL). The results demonstrate that, after HIL exposure in an optical furnace, the niobium pentoxide and tantalum pentoxide ceramics possess enhanced microhardness and improved mechanical properties (strength, fracture toughness, and brittle microstrength) owing to the formation of fractal micro- and nanostructures. With increasing exposure intensity, the strength of the Nb2O5 and Ta2O5 ceramics increases.
引用
收藏
页码：433 / 438
页数：6
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