Studies on Application of High Aluminium Austenitic Stainless Steel for dental material

高铝奥氏体不锈钢在牙科材料中的应用研究

• 批准号: 07557276
• 负责人: KISHI Masataka
• 金额: $ 0.77万
• 依托单位: TOKYO DENTAL COLLEGE
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07557276/
• 关键词: Thin layar of Al_2O_3; Selective oxidation of Al; Theamal condition; Bio-compatibility; Material for dental use; A1の選択酸化; 合金の加熱条件

It is important to reduce the corrosion from dental materials because of they exporsed long time in oral cavity. High Aluminium austenitic stainless steel is used to fireproof material based on the Aluminum oxiide film forming by heat treatment. It is well known that Aluminium oxide film showes high corrosion resistance, than this stainless steel may be show either the high corrosion resistance and proper mechanical strength for dental use.In the first, the condition of heat treatment forming to equally Aluminuom oxiide film and the mechanical property of the casting material were investigated, When the heat treatment of sixty minutes at 900ﾟC has done, a firm Aluminum oxiide film formed the alloy which made by the casting system in dental use. The mechanical property of the casting material after heat treatment has been show exellent property for dental use.In the second, corrosion resistance and bio-affinity of the Aluminum oxiide film forming by heat treatment were investigated. The corrosion resistance of the casting material after heat treatment increase markedly than before heat treatment. The Aluminum oxiide film forming by heat treatment showed a less cell toxity but moderate showed in before heat treatment.It is suggested that the Aluminum oxiide film forming by heat treatment of high Aluminium austenitic stainless steel make more corrsion resistance and well bio-affinity and showes exellent mechanical property for dental use.

口腔材料在口腔中的暴露时间长，减少其腐蚀是非常重要的。高铝奥氏体不锈钢是利用热处理形成的氧化铝膜作为耐火材料。氧化铝膜具有很高的耐蚀性，而这种不锈钢既具有很高的耐蚀性，又具有一定的机械强度，因此，本文首先研究了在900 ℃下热处理60分钟后，形成均匀氧化铝膜的条件和铸造材料的力学性能。牙科用铸塑法制备的合金表面形成一层牢固的氧化铝膜。热处理后的铸造材料具有良好的力学性能。其次，研究了热处理所形成的氧化铝膜的耐蚀性和生物亲和性。热处理后铸件的耐蚀性比热处理前有明显提高。热处理形成的氧化铝膜对细胞的毒性较小，而热处理前的毒性适中，表明高铝奥氏体不锈钢经热处理形成的氧化铝膜具有更好的耐蚀性和生物亲和性，并显示出良好的牙科机械性能。

项目成果

吉成正雄、奥森直人、住井俊夫、関根弘、岸正孝、辻吉純、山中幹夫: "高Alオーステナイト系ステンレス鋼の歯科応用に関する研究-鋳造材の耐食性、機械的性質、陶材との焼付性-" 歯科学報. 94. 631-639 (1994)

Masao Yoshinari、Naoto Okumori、Toshio Sumii、Hiroshi Sekine、Masataka Kishi、Jun Tsujiyoshi、Mikio Yamanaka：“高铝奥氏体不锈钢的牙科应用研究——耐腐蚀性、铸造材料的机械性能以及与瓷材料的关系” -”牙科杂志。94。631-639（1994）

Masao Yoshinari, Naoto OKUMORI,Toshio SUMII,Hiromu SEKINE,Masataka KISHI,Yoshizumi TSUJI Mikio YAMANAKA: "Studies on the Application of High Alminium Austenitic Stainless Steel (in Japanese)" SHIKWA GAKUHO. Vol.94, No 7. 631-639 (1994)

Masao Yoshinari、Naoto OKUMORI、Toshio SUMII、Hiromu SEKINE、Masataka KISHI、Yoshizumi Tsuji Mikio YAMANAKA：“高铝奥氏体不锈钢的应用研究（日语）”SHIKWA GAKUHO。