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id="pjb2eya" class="proBig"><div id="qa2vlvw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112080078/2215672.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bvk3f8a" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112080078/2215672.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="od6oluq" 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>四川鋅液碳化硅結(jié)合氮化硅</p><p><span>***更新：</span>2020-06-26 10:18:06</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="zoaxe3l" 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="8g3z7vm" class="page-proshow02"><p class="title">詳細說明</p><div id="y8lvmlx" class="box"><p><p> 可預(yù)先確定標準爐壓，不排尾氣，以靜態(tài)氮化的“氣耗定升溫”來控制，這樣可直觀了解氮化過程，便于調(diào)整氨化工藝參數(shù).同時還可使氮化速率均勻,保證產(chǎn)品性能的可靠性。因而氮化硅結(jié)合碳化硅所制出來的窯具和工藝品的品質(zhì)是很高的。氮化硅結(jié)合碳化硅的氧化物加入回收試驗的分析，我們都了解氮化硅結(jié)合碳化硅材料中的氧主要來源于硅被氧化結(jié)合氧以及材料合成時所用添加劑硅鋁酸鹽礦物中的氧，其主要存在形式為二氧化硅、SiAlON、三氧化二鋁，四川鋅液碳化硅結(jié)合氮化硅、氧化鎂和氧化鈣等。紅外吸收光譜法測定氧的原理是碳還原氧化物生成一氧化碳通過載氣帶入氧化池氧化成二氧化碳后測定氧量，因此，四川鋅液碳化硅結(jié)合氮化硅，測定全氧的充分條件是碳能在規(guī)定的時間內(nèi)于設(shè)定的溫度下還原所有氧化物。那我們采用在石墨坩堝中，利用脈沖加熱惰氣使氮化硅結(jié)合碳化硅耐火材料中的氧化物還原，以紅外線吸收光譜法測定其中的氧含量。加入二氧化硅、三氧化二鋁進行方法準確度的考查，事實證明這個方法準確可靠，可用于氮化硅結(jié)合碳化硅耐火材料中氧含量的測定。我們之所以選擇氮化硅結(jié)合碳化硅材料，其不可忽視的就是它的性能，氮化硅結(jié)合碳化硅材料主要特點是：高溫強度高；導(dǎo)熱性能好；抗氧化、抗熱震性能好，四川鋅液碳化硅結(jié)合氮化硅，且耐腐蝕、抗高溫蠕變性好。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川鋅液碳化硅結(jié)合氮化硅" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112080078/2215672.jpg"></div><p> “氮化硅結(jié)合碳化硅陶瓷加熱器保護套管”詳細介紹產(chǎn)品主要有陶瓷坩堝、陶瓷噴嘴、陶瓷升液管、加熱器保護套管等氮化硅超高溫材料制品，氮化硅超高溫材料制品具有耐高溫和低密度等特性。根據(jù)不同使用環(huán)境，可滿足1650℃以下長壽命、高溫防熱、高速剎車、核能和燃氣舵機等方面有十分廣闊的應(yīng)用前景。長期以來，鋁合金等有色金屬的熔煉坩堝都是采用鑄鋼、鑄鐵和石墨等材料。但這兩種材料都存在明顯的不足之處：金屬坩堝在和鋁合金熔體接觸過程中會發(fā)生“滲鐵”現(xiàn)象，從而降低合金的冶金質(zhì)量；而石墨坩堝在使用過程中存在嚴重的氧化現(xiàn)象。氮化硅結(jié)合碳化硅是近年來發(fā)展起來的新型非氧化物高溫結(jié)構(gòu)陶瓷材料，具有耐高溫、抗氧化、抗腐蝕、與鋁合金不潤濕和惰性強等特點，在性能上明顯優(yōu)于氧化物陶瓷材料，因此在鋁合金、銅合金和鋅合金等有色金屬領(lǐng)域倍受關(guān)注。Si3N4陶瓷雖然具有“輕如鋁、強如鋼、硬若金剛石”等優(yōu)點，但若采用單一組元的氮化硅來制造所需的陶瓷部件，會存在制造成本高的問題。采用氮化硅結(jié)合碳化硅材料，即可發(fā)揮氮化硅易于燒結(jié)和抗熱震性好的特點，同時又能大幅度降低材料的制造成本。因此采用反映燒結(jié)氮化硅結(jié)合碳化硅的材料體系。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川鋅液碳化硅結(jié)合氮化硅" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403242947902_zbwuzi_2449633.jpg"></div><p style="text-indent:25px"> 氮化硅結(jié)合碳化硅添加不同助劑時的外貌變化：在添加不同的燒結(jié)助劑對氮化硅結(jié)合碳化硅樣品的主要物相為SiC和Si3N4，我們?nèi)追N樣品進行實驗，首先樣品A和樣品C主要含有α-Si3N4，樣品B主要含有β-Si3N4，α-Si3N4呈針狀，β-Si3N4呈棒狀；樣品C中α-Si3N4特征峰強度較樣品A而言更強；圖譜中出現(xiàn)的Si5AlON7、Y2Si2O7的衍射峰，說明燒結(jié)助劑在燒結(jié)過程中與Si3N4或SiO2發(fā)生反應(yīng)。經(jīng)過試驗我們看樣品的SEM照片得出以下結(jié)論(A)Si3N4晶須呈棉絮狀含量較少，主要附著在SiC顆粒表面；(B)樣品Si3N4晶須呈長棒狀多為β-Si3N4，主要嵌插在碳化硅顆粒間表面粗糙；(C)Si3N4晶須呈針狀，分布在表面和孔隙間。以上闡述是氮化硅結(jié)合碳化硅在添加不同燒結(jié)助劑時的物相以及在顯微鏡下的形狀樣貌。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/397336.html</p></div></div></div></div></div><div id="yik7j42" class="page-right twoColRt"><div id="poqczg7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fzgdaho" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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