氮化硅（Si3N4�?参数-价格-中国粉体罐�/title>

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style="font-size:16px;color:#7f7f7f;">陶瓷材料的极端应�?/span></strong></span></p><h2 class="big" style="padding:0px;margin:0px 0px 5px;font-size:2.8em;font-weight:normal;list-style-type:none;font-family:arial, 微软雅黑;outline:none;"><span style="color:#666666;font-size:14px;line-height:18px;"></span><span style="font-size:14px;font-family:宋体, simsun;">氮化硅（</span><span style="font-size:14px;font-family:宋体, simsun;">Si3N4</span><span style="font-size:14px;font-family:宋体, simsun;">）是功能材料性能�?*结合。它们几乎轻如碳化硅＇�/span><span style="font-size:14px;font-family:宋体, simsun;">SiC</span><span style="font-size:14px"><span style="font-size:14px;font-family:宋体, simsun;">），但他们的微观结构使它们有优异的耐热冲击性；它们的高断裂韧性使得它们有良好的耐冲击性。氮化硅已应用在许多工业领域中，如发动机部件的已使用，轴承和切割工具、�/span><span style="background-color:#ffffff;font-family:宋体, simsun;">氮化硅比大多数金属具有更好的高温性能，结合保留的高强度和抗蠕变与耐氧化性电阺�/span><span style="font-size:14px;font-family:宋体, simsun;">。此外，与大多数陶瓷材料相比，其热膨胀系数低使其有良好的抗热震�?/span></span><span style="font-size:14px;font-family:宋体, simsun;">、�/span><span style="color:#666666;font-size:14px;line-height:18px;"></span><br/></h2><p class="title-teaser" style="padding:0px;color:#666666;font-size:1.3em;outline:none;line-height:1.55em;margin-top:0px;margin-bottom:10px;"><span style="font-size:14px"><span style="font-size:14px;font-family:宋体, simsun;">值得了解</span>９�/span><span style="font-size:14px;font-family:'calibri','sans-serif'"><br/></span><span style="font-size:14px;">氮化硅的性质</span><span style="font-family:arial, 微软雅黑;font-size:1.8em;line-height:30px;color:#333333;"></span></p><ul class="featurelist list-paddingleft-2" style="list-style-type: none;"><li><p style="padding:0px;font-size:14px !important;margin-top:0px;margin-bottom:0px;"><span style="font-size:14px">极低的密度（</span><span style="font-size:14px;font-family:'calibri','sans-serif'">3.21</span><span style="font-size:14px">兊�/span><span style="font-size:14px;font-family:'calibri','sans-serif'">/立方</span><span style="font-size:14px">厘米</span><span style="font-size:14px">（�/span></p></li><li><p style="padding:0px;font-size:14px !important;margin-top:0px;margin-bottom:0px;"><span style="font-size:14px">非常高的断裂韧性（</span><span style="font-size:14px;font-family:'calibri','sans-serif'">7 <span class="hps">MPAM</span>1/2</span><span style="font-size:14px">（�/span></p></li><li><p style="padding:0px;font-size:14px !important;margin-top:0px;margin-bottom:0px;"><span style="font-size:14px">良好的抗弯强度（</span><span style="font-size:14px;font-family:'calibri','sans-serif'">850</span><span style="font-size:14px">兆帕（�/span></p></li><li><p style="padding:0px;font-size:14px !important;margin-top:0px;margin-bottom:0px;"><span style="font-size:14px">非常良好的抗热震性：高热应力参数＇�/span><span style="font-size:14px;font-family:'calibri','sans-serif'">569 <span class="hps">K</span></span><span class="hps"><span style="font-size:14px">（�/span></span></p></li><li><p style="padding:0px;font-size:14px !important;margin-top:0px;margin-bottom:0px;"><span style="font-size:14px">在氧化气氛中**工作温度９�/span><span style="font-size:14px;font-family:'calibri','sans-serif'">1300</span><span style="font-size:14px">ℂ�/span><span class="Apple-tab-span"></span></p></li><li><p style="padding:0px;font-size:14px !important;margin-top:0px;margin-bottom:0px;"><span style="font-size:14px">在中性气�?*工作温度９�/span><span style="font-size:14px;font-family:'calibri','sans-serif'">1600</span><span style="font-size:14px;font-family:'cambria math','serif'">ℂ�/span></p></li></ul><p style="padding:0px;outline:none;font-size:1.3em;line-height:1.55em;margin-top:0px;"><span style="color:#666666;font-family:arial, 微软雅黑;font-size:14px;line-height:18px;"></span></p><p><span style="font-family:宋体, simsun;font-size:14px;">氮化硅的属性：<br/></span><span class="hps" style="font-family:宋体, simsun;font-size:14px;">‡�/span><span class="hps" style="font-family:宋体, simsun;font-size:14px;">低密�?/span><br/><span style="font-family:宋体, simsun;font-size:14px;">� 耐高�?br/>� 优异的抗热震�?br/>� 优异的耐磨�?br/>� 断裂韧性好<br/>� 抗机械疲劳和抗蠕变�?br/>� 良好的抗氧化�?/span><span style="font-family:'arial','sans-serif';color:#666666;background:white"></span></p><p style="padding:0px;outline:none;font-size:1.3em;line-height:1.55em;margin-top:0px;"><span style="color:#666666;font-family:arial, 微软雅黑;font-size:14px;line-height:18px;"></span><br/></p><p><span style="font-size:14px;"><br/><strong><span style="font-size:16px;color:#7f7f7f;">应用</span></strong><br/></span><span style="font-family:宋体, simsun;font-size:14px;">目前该材料被用在小众市场，例如在往复式发动机部件和涡轮增压器，轴承，金属切割和成形工具及热金属处理、�/span><span style="color:#666666;font-family:arial, 微软雅黑;line-height:18px;"><span style="color:#666666;font-family:宋体, simsun;line-height:18px;font-size:14px;">.</span><br/></span><span style="font-family:宋体, simsun;font-size:14px;">该材料的微观组织由互锁的结晶微米棒组成、�/span></p><p><span style="font-family:宋体, simsun;font-size:14px;">这种结构的组合，被证实特别有用的一个应用就是是灰铸铁或铸铁与陶瓷刀片的切削加工。与硬金属或其它材料的切削不同的是，这种机加工工艺可以用陶瓷刀片以**速度进行，而无需使用冷却润滑剂。拥有良好的耐磨性和优异的断裂韧性的结合的氮化硅陶瓷，注定要应用在球形，滚动和极其精确的轴承，重型陶瓷成型工具和承受高应力的汽车零部件。并且良好的耐热冲击性和耐高温性能也被利用在焊接过程中、�/span><span style="font-family:'arial','sans-serif';color:#666666;background:white"></span></p><p><br/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = $(this).index(); $(".xgfa_box").css("display","none"); 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