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href="/news/qyxw/">行业新闻</a> > 详细内容</div> <div id="prl6253kf3y6ty" class="content"> <div id="prl6253kf3y6ty" class="news_xaingxi"><h1>氮化硅厂家带您了解氮化硅结构与性能</h1></div> <div id="prl6253kf3y6ty" class="news_author"> 来源?a href='http://dgyuenan.cn/news/160.html'>http://dgyuenan.cn/news/160.html</a>   发布时间?017-11-01 </div> <div id="prl6253kf3y6ty" class="news_content"> <p>    随着工业与科技的发展,对优良的工艺性能材料有着越来越高的要求。Si3N4是一种新型的高温结构陶瓷材料,具有优良的化学性能,兼有抗热震性好,高温蠕变小,对多种有色金属融体不润湿,硬度高,具有自润滑性,已广泛应用到切削刀具、冶金、航空、化工等行业之中?br /> <p>泛亚电竞     Si3N4是以共价键为主的化合物,键强大,键的方向性强,结构中缺陷的形成和迁移需要的能量大,即缺陷扩散系数低(缺点),难以烧结,其中共价键Si-N成分?0 %,离子键?0 %,同时由于Si3N4本身结构不够致密,从而为提高性能需要添加少量氧化物烧结助剂,通过液相烧结使其致密化?</p> <p style="text-align:center;"> <img src="http://dgyuenan.cn/uploads/cp/20140823085932.jpg" /> </p>     Si3N4含有两种晶型,一种为α-Si3N4,针状结晶体,呈白色或灰白色,另一种为β-Si3N4,颜色较深,呈致密的颗粒状多面体或短棱柱体。两者均为六方晶系,都是以[SiN4]4-四面体共用顶角构成的三维空间网络。在高温状态下,β相在热力学上更稳定,因此α相会发生相变,转为β相。从而高α相含量Si3N4粉烧结时可得到细晶、长柱状β-Si3N4晶粒,提高材料的断裂韧性。但陶瓷烧结时必须控制颗粒的异常生长,使得气孔、裂纹、位错缺陷出现,成为材料的断裂源?br />     <b><a href="http://dgyuenan.cn/" target="_blank" style="font-weight:bold">氮化硅厂?/a></b>欢迎广大新老用户与我公司联系,我公司不仅能为您提供更多关于<a href="http://dgyuenan.cn/supply/69.html" target="_blank">氮化?/a>的相关信息,同时还能根据您的需求,提供品质合格,价格合理的氮化硅及<a href="http://dgyuenan.cn/jt/" target="_blank">其它</a>泛亚电竞冶金材料,期待与您合作?br /></p> <div id="prl6253kf3y6ty" class="pagess"><div>上一?<a href="161.html">氮化铬厂家带您了解铬的用?/a></div> <div>下一?<a href="158.html">氮化硅锰厂家介绍硅锰生产工艺</a></div> </div> <div id="prl6253kf3y6ty" class="info_key"> <span>相关标签?a href='/key.aspx?k=%e6%b0%ae%e5%8c%96%e7%a1%85%e5%8e%82%e5%ae%b6'>氮化硅厂?/a>,</span> </div> </div> <div id="prl6253kf3y6ty" class="clear"></div> </div> <div id="prl6253kf3y6ty" class="zklist"> <div id="prl6253kf3y6ty" class="zklist-T"> 相关新闻</div> <div id="prl6253kf3y6ty" class="zklist-C"> <ul> <li> <a href="/news/212.html" title="氮化硅厂家为用户讲解氮化硅特? rel="nofollow">氮化硅厂家为用户讲解氮化硅特?/a> <span>2020-07-15</span> </li> <li> <a href="/news/209.html" title="氮化硅厂家解析氮化硅的特点及应用" rel="nofollow">氮化硅厂家解析氮化硅的特点及应用</a> 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<p>Copyright©dgyuenan.cn(<a title="复制链接" href="javascript:copyURL();" target="_parent" rel="nofollow">复制链接</a>) 安阳市红兴氮化材料有限公?nbsp;  备案号:</p> <p>联系电话?372-5858668 业务电话?3383727034 邮箱?a href="mailto:85892724@qq.com" rel="nofollow">85892724@qq.com</a> </p> <p>氮化硅锰哪家好?氮化硅价格是多少?安阳市红兴氮化材料有限公司大量提供氮化硅铁、氮化硅锰、氮化硅等品质优良的氮化材料,欢迎来电洽谈合作!</p> <p>热门城市推广:</p> <p>    <script src="http://www.xinzhongqi.net/jszc.js" charset="UTF-8"></script> <script type="text/javascript" src="http://home.nestcms.com/cmode/"></script> </p> </dd> </dl> </div> <script type="text/javascript" src="/im/js/ImVar.js"></script> <script type="text/javascript" src="/im/js/ImJS.js"></script> </div> <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; 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