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題 名 | The Effect of Coating Film on the Thermal Stress of Metal Matrix Composite=纖維上之鍍層對金屬基複合材料熱應力之影響 |
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作 者 | 徐瑞芳; 許志銘; 林盈惠; 何智廷; | 書刊名 | 國立虎尾技術學院學報 |
卷 期 | 2 1999.03[民88.03] |
頁 次 | 頁205-211 |
分類號 | 440.34 |
關鍵詞 | 殘留熱應力; 複合材料; 碳纖維; 鍍層; 金屬基; |
語 文 | 英文(English) |
中文摘要 | 在碳纖維強化金屬基複合材料中,由於在纖維方向,碳纖維與金屬間有差異極大 之熱膨脹係數,因而熱應力會在製造複合材料時在冷卻當中被引起。通常此殘留熱應力極大, 甚至可造成金屬基塑性變形,因而可知此殘留熱應力對複合材料性質應有顯著之影響。 在本計畫中,銅及鎳用來電鍍碳纖維,以及以複合電鍍得到Cu/Al O , Ni/Al O 鍍 層材料。鋁基及錫-鉛合金複合材料乃利用壓擠鑄造法來製造。當鍍層材料之熱膨脹係數增 加時,複合材料中殘留熱應力將會減少。當增加鍍層厚度時,殘留熱應力將會減少。 |
英文摘要 | Owing to the large thermal expansion mismatch in the fiber longitudinal direction between carbon fiber and metal matrix, the thermal stress can be induced during cooling from high temperature for composite fabrication. The thermal stress can be large enough to cause yielding in the matrix. These thermal stresses can have a substantial effect on the carbon fibers reinforced metal matrix composite's performance. In this project, the Cu or Ni coating materials was used on coating carbon fiber. Composite coating technique was used to get Cu/Al O and Ni/Al O coatings. The composite with aluminium and tin-lead matrix was fabricated by squeeze casting. The tensile properties of composites had also been tested. The thermal stresses in composites generated during cooling decreased as the thermal expansion coefficient of the coating film increased. When the thickness of the coating was increased, the residual stress of the composite was decreased. |
本系統中英文摘要資訊取自各篇刊載內容。