材料科学
氮化硼
微观结构
磨料
陶瓷
复合材料
压痕硬度
扫描电子显微镜
多孔性
润湿
气泡
硼硅酸盐玻璃
计算机科学
并行计算
作者
B. Staniewicz-Brudnik,Jarosław Plichta,Krzysztof Nadolny
出处
期刊:Optica Applicata
[Politechnika Wroclawska Oficyna Wydawnicza]
日期:2005-01-01
卷期号:35: 809-817
被引量:2
摘要
The results of physicochemical and mechanical investigations into the properties of bubble alumina (BA) and magnesium aluminosilicate (MA) addition to abrasive masses designed for cubic boron nitride (cBN) tools have been presented. Two kinds of addition were investigated by the following experimental techniques: scanning electron microscopy – microstructure, densimeter – helium density, microhardness test, dilatometer – α-TMA, wetting test. Bubble alumina fulfilled all the criteria of usability. Tools of 1A1 35×5×10×10 B126, 100, Pb21K with BA addition (0, 5, 10, 12 vol%) were made. A pre-performance investigation was done on grinding a LH-15 steel with tool speed of 30, 45, 60 m/s, microtopographies of wheels and work-pieces were described by the following roughness parameters: Ra (0.2–0.5 µm), Rz (1.16–2.2 µm), ∆k (2–8 µm). The best results were obtained by using wheels with 10 vol% BA addition.
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