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href="/">首页</a> > <a href="/news/hyxw/">公司新闻</a> > 详细内容</div> <div id="prl6253kf3y6ty" class="content"> <div id="prl6253kf3y6ty" class="news_xaingxi"><h1>碳化硅主要具备哪些物理性能</h1></div> <div id="prl6253kf3y6ty" class="news_author"> 来源ï¼?a href='http://dgyuenan.cn/news/198.html'>http://dgyuenan.cn/news/198.html</a>   å‘布时间ï¼?019-09-20 </div> <div id="prl6253kf3y6ty" class="news_content"> <p>    碳化硅的种类有很多,而且,被应用在不同的领域中。然而,想要通过合理应用碳化硅,充分发挥出碳化硅的作用,先要了解碳化硅的基本信息。为了能让大家更进一步的了解碳化硅,将主要针对碳化硅的物理性能进行总结及介绍ã€?br />     1、碳化硅的热导率及线膨胀系数。作为一种优质耐火材料,碳化砖具有优越的抗热震性能。这一点具体表现在它具有高的热导率(导热系数)和较低的线膨胀系数。一般工程计算上取碳化硅的导热系数为6.28ï½?.63W.M-1.K-1。此值约为刚玉导热系数的4倍。在25ï½?400℃范围内,碳化硅的平均线膨胀系数可取4.4×l0-6 K-1;而刚玉的线膨胀系数ä¸?7ï½?)×l0-6 K-1ã€?br />     2、碳化硅的导电性能。碳化硅是一种半导体,其导电性能随晶体中引入杂质的种类和数量的不同而变化,电阻率在10-2-1012Ω·cm之间。其中对碳化硅导电性影响较大的杂质是铝、氮和硼,含铝较多的碳化硅导电性显著增大。碳化硅的导电性随电场强度的增大而迅速提高,且具有非线性变化的特点。碳化硅的这一特性被用于制作避雷器阀片ã€?br /> <p>     3、碳化硅的电阻率。碳化硅的电阻率随温度的变化而改变,但在一定的温度范围内与金属的电阻温度特性相反。碳化硅的电阻率与温度的关系更为复杂。碳化硅的导电率随温度升高到一定值时出现峰值,继续升高温度,导电率又会下降ã€?</p> <p style="text-align:center;"> <img src="http://dgyuenan.cn/uploads/news/20190920052121.jpg" title="碳化ç¡? alt="碳化ç¡? /> </p>     我公司长年生产及提供各种碳化硅,也可根据用户的要求,生产及提供不同成分,不同粒度的碳化硅。同时,也会定期总结及发布一些关于碳化硅的信息,想要了解碳化硅,可登录我公司官网查阅咨询ã€?br /></p> <div id="prl6253kf3y6ty" class="pagess"><div>上一æ?<a href="199.html">怎样分辨碳化硅微粉的品质</a></div> <div>下一æ?<a href="197.html">氮化硅锰在炼钢中的具体作ç”?/a></div> </div> <div id="prl6253kf3y6ty" class="info_key"> <span>相关标签ï¼?a href='/key.aspx?k=%e7%a2%b3%e5%8c%96%e7%a1%85'>碳化ç¡?/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/206.html" title="黑碳化硅的特性及用é€? rel="nofollow">黑碳化硅的特性及用é€?/a> <span>2020-04-03</span> </li> <li> <a href="/news/203.html" title="碳化硅具备哪些物理特æ€? rel="nofollow">碳化硅具备哪些物理特æ€?/a> <span>2020-02-14</span> </li> <li> <a href="/news/199.html" title="怎样分辨碳化硅微粉的品质" 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