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http:///mymemo.xyz/wiki/api.php?action=feedcontributions&user=240F%3A7C%3ACE62%3A1%3A89F5%3A74D1%3A27D5%3A8938&feedformat=atom 2024-05-04T14:45:55Z 利用者の投稿記録 MediaWiki 1.31.0 2016-12-23T10:23:02Z

<p>240F:7C:CE62:1:89F5:74D1:27D5:8938: </p> <hr /> <div>{{Chembox<br /> |出典=&lt;!--en:Silicon nitride: 形状、密度、融点--&gt;<br /> |画像ファイル=Si3N4bearings.jpg<br /> |画像サイズ=<br /> |画像キャプション=セラミックスでできたベアリング部材 Si&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt;<br /> |IUPAC名=&lt;!-- | IUPACName_hidden = yes で長いIUPAC名を隠す--&gt;<br /> |別称=シリコンナイトライド<br /> |Section1=<br /> {{Chembox Identifiers<br /> |CAS番号=12033-89-5<br /> |PubChem=<br /> |SMILES=<br /> }}<br /> |Section2={{Chembox Properties<br /> |化学式=Si&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt;<br /> |モル質量=140.28 g/mol<br /> |外観=灰色粉末<br /> |密度=3.44 g/cm&lt;sup&gt;3&lt;/sup&gt;, 固体<br /> |融点=1900 °C（分解）<br /> |沸点=<br /> |溶解度=<br /> }}<br /> |Section3={{Chembox Structure<br /> |結晶構造=六方晶系<br /> }}<br /> }}<br /> &#039;&#039;&#039;窒化ケイ素&#039;&#039;&#039;（ちっかケイそ、silicon nitride）は、化学式 Si&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt; で表される[[無機化合物]]。非酸化物[[セラミックス]]の代表。&#039;&#039;&#039;シリコンナイトライド&#039;&#039;&#039; ともいう。<br /> <br /> == 物理的性質 ==<br /> [[結晶構造]]は六方晶系で α-Si&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt; と β-Si&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt; がある。<br /> <br /> 主な種類として、以下の3種類があげられる。<br /> * sintered silicon nitride (SSN)-焼結窒化ケイ素<br /> * gas pressure sintered silicon nitride (GPSSN)-ガス圧力焼結窒化ケイ素<br /> * hot-pressed silicon nitride (HPSN)-熱処理プレス加工した窒化ケイ素<br /> <br /> == 用途 ==<br /> 非常に硬質であることなど、優れた機械的特性を持つことから[[ベアリング]]、タービンブレード、切削工具などに応用されている。<br /> <br /> == 関連項目 ==<br /> *[[窒化物半導体]]<br /> *[[窒化アルミニウム]]<br /> <br /> {{ケイ素の化合物}}<br /> {{Chem-stub}}<br /> {{DEFAULTSORT:ちつかけいそ}}<br /> [[Category:無機化合物]]<br /> [[Category:窒化物]]<br /> [[Category:ケイ素の化合物]]</div>

240F:7C:CE62:1:89F5:74D1:27D5:8938
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