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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>福建鑄造氮化硅保護管廠價直銷</p><p><span>***更新：</span>2020-05-30 09:04:27</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="yidxv7w" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">鄒平縣奧翔硅碳制品有限公司</a></p><p><span>聯(lián)系人：</span>張洪恩</p><p><span>郵箱: </span>13884861614@163.com</p><p><span>電話: </span>13884861614</p><p><span>傳真: </span>0543_4534117</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0543-4533667</p><p><span>地址: </span>山東省鄒平市臨池鎮(zhèn)望京村</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8yynma8" class="page-proshow02"><p class="title">詳細說明</p><div id="jzznim8" class="box"><p><p style="text-indent:25px">氮化硅與水幾乎不發(fā)生作用；在濃強酸溶液中緩慢水解生成銨鹽和二氧化硅；易溶于氫氟酸，與稀酸不起作用。濃強堿溶液能緩慢腐蝕氮化硅，福建鑄造氮化硅保護管廠價直銷，熔融的強堿能很快使氮化硅轉(zhuǎn)變?yōu)楣杷猁}和氨，福建鑄造氮化硅保護管廠價直銷。氮化硅在 600℃以上能使過渡金屬（見過渡元素）氧化物、氧化鉛、氧化鋅和二氧化錫等還原,并放出氧化氮和二氧化氮，福建鑄造氮化硅保護管廠價直銷。1285℃ 時氮化硅與二氮化三鈣Ca3N2發(fā)生以下反應(yīng)： Ca3N2+Si3N4─→3CaSiN2 氮化硅的制法有以下幾種：在1300～1400℃時將粉狀硅與氮氣反應(yīng)；在1500℃時將純硅與氨作用；在含少量氫氣的氮氣中灼燒二氧化硅和碳的混合物;將SiCl4的氨解產(chǎn)物Si(NH2)4完全熱分解。氮化硅可用作催化劑載體、耐高溫材料、涂層和磨料等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建鑄造氮化硅保護管廠價直銷" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998424088453159_zbwuzi_2925212.jpg"></div><p> 氮化硅制品、氮化硅陶瓷的制備技術(shù)在過去幾年發(fā)展很快,制備工藝主要集中在反應(yīng)燒結(jié)法、熱壓燒結(jié)法和常壓燒結(jié)法、氣壓燒結(jié)法等類型.由于制備工藝不同,各類型氮化硅陶瓷具有不同的微觀結(jié)構(gòu)(如孔隙度和孔隙形貌、晶粒形貌、晶間形貌以及晶間第二相含量等).因而各項性能差別很大[9].要得到性能優(yōu)良的Si3N4陶瓷材料,首先應(yīng)制備高質(zhì)量的Si3N4粉末.用不同方法制備的Si3N4粉質(zhì)量不完全相同,這就導(dǎo)致了其在用途上的差異,許多陶瓷材料應(yīng)用的失敗,往往歸咎于開發(fā)者不了解各種陶瓷粉末之間的差別,對其性質(zhì)認識不足.一般來說,高質(zhì)量的Si3N4粉應(yīng)具有α相含量高,成均勻,雜質(zhì)少且在陶瓷中分布均勻,粒徑小且粒度分布窄及分散性好等特性.好的Si3N4粉中α相至少應(yīng)占90%,這是由于Si3N4在燒結(jié)過程中,部分α相會轉(zhuǎn)變成β相,而沒有足夠的α相含量,就會降低陶瓷材料的強度.反應(yīng)燒結(jié)法(RS)是采用一般成型法,先將硅粉壓制成所需形狀的生坯,放入氮化爐經(jīng)預(yù)氮化(部分氮化)燒結(jié)處理,預(yù)氮化后的生坯已具有一定的強度,可以進行各種機械加工(如車、刨、銑、鉆).,在硅熔點的溫度以上;將生坯再一次進行完全氮化燒結(jié),得到尺寸變化很小的產(chǎn)品(即生坯燒結(jié)后,收縮率很小,線收縮率<。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建鑄造氮化硅保護管廠價直銷" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238611242919922/2447803.jpg"></div><p> 碳知化硅的用處：碳化硅制品具有耐高溫、耐磨、耐熱震、耐化學(xué)腐蝕、耐輻射和杰出的導(dǎo)電性、導(dǎo)熱性等特別功用，因而在國民經(jīng)濟各部門中具有普遍的用處。1、在電氣工業(yè)中，碳化硅可用做避雷器閥體、硅碳道電熱元件、遠紅外線發(fā)生器等。2、在航天工業(yè)中版，用碳化硅制造的燃氣濾片、燃燒室噴嘴已用于火箭技能中。3、在炭素工業(yè)中，碳化硅首要用來出產(chǎn)煉鐵高爐用磚在石墨電極出產(chǎn)中，碳化硅還用做耐氧化涂層電極的涂層耐火燒結(jié)料的配猜中，以添加涂層對溫度急劇改變的承受才能。4、在特種炭素資料——生物炭的制造中，常以丙烷和三氯甲基硅烷為氣體質(zhì)權(quán)料，經(jīng)高溫?zé)峤夥错?，在石墨基體上堆積生成含硅熱解炭涂層，以添加硅碳制品的硬度、強度和耐磨性。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建鑄造氮化硅保護管廠價直銷" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238611242197265/5376407.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/86712.html</p></div></div></div></div></div><div id="pbae2hq" class="page-right twoColRt"><div id="z9a9sq9" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dm31dwg" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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