摘要
本文利用物质结构与化学键的有关理论对石英砂的菱苦土磨具中的作用机理进行分析,并以实验对分析结果进行验证。结果表明:金刚砂晶体中Si-C共价键的离子性百分数仅为9％,石英晶体中Si-O共价键的离子性百分数为47％,因此,石英与主要以离子键结合的菱苦土结合剂之间有较强的静电作用力,石英与菱苦土的结合力强于金刚砂,可提高菱苦土磨具的耐磨性。
In this paper, the functional mechanism of quartz in magnesia bonded abrasives is studied by applying the relevant theory of material structure and chemical bond, and identified the theoretical result by experiment. Conclusion: ionization percentage of Si - C covalent bond in carborundum is 9% , and that is 47% in Si - 0 covalent bond of quartz, thus there is strong electrostatic attraction between quartz and magnesia abrasives, quartz can combine with magnesia bonded abrasives more close than carborundum does, and improve the wearability of abrasives evidently.
出处
《石材》
2003年第7期37-39,共3页
Stone
