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題名 | 專訪花蓮港務局黎局長克恕談花蓮港之經營策略與展望= |
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作者 | 許盛隆; |
期刊 | 海下技術季刊 |
出版日期 | 19991000 |
卷期 | 9:3 1999.10[民88.10] |
頁次 | 頁38-42 |
分類號 | 443.2 |
語文 | chi |
關鍵詞 | 花蓮港; 經營; |
中文摘要 | 影響瓷層與金屬間結合力之因素很多,如金屬成份, 陶材組成,金屬表面處理方 式及結合劑之使用。 本實驗以二種賤金屬,一種含鈹合金 Rexillium Ⅲ及另一種不含鈹合 金 Wiron 88,試片經由五種不同研磨器材 50um 三氧化二鋁噴砂,100 um 三氧化二鋁噴吵 ,碳鋼磨針,碳化矽錐, 切片等研磨後, 採用 Interface 結合劑及二種瓷粉 Biobond 和 Noritake 燒付, 探討五種研磨材對合金表面結構,二種瓷粉和二種合金對結合力的影響, 其結果如下: 1. 表面粗糙度與結合力大小是沒有正相關線性關係存在。 即並不會因表面粗糙度大,其結 合力就大。 2. 不同研磨方式對結合力影響,由大到小依序為 100 um 三氧化二鋁噴砂, 碳鋼磨針,50 um 三氧化二鋁噴砂,碳化矽錐,切片。100 um 三氧化二鋁噴砂和碳鋼磨針,統計學上沒有 顯著差異( p>0.05 ), 50um 三氧化二鋁噴砂和碳化矽錐也沒有統計學上差異( p>0.05 ), 其他各組比較皆有顯著差異( p<0.05 )。 3. 合金 Rexillium Ⅲ結合力( 237.1 kg/cm �砥^比合金 Wiron 88 結合力( 231.3 kg/cm �砥^大, 兩者在統計學上有顯著的差異( p<0.05 )。 4.Noritake 瓷粉結合力( 247.9 kg/cm �砥^比 Biobond 瓷粉結合力( 202.6 kg/cm �砥^ 大,兩者在統計學上有顯著的差異( p<0.05 )。 5. 觀察斷裂面,經由 50 um 和 100 um 三氧化二鋁噴砂及碳鋼磨針處理的表面,其斷裂面 是黏著性和內聚性並存的型式,而碳化矽錐和切片其斷裂面是黏著性的型式。 |
英文摘要 | The popularity of the base metal alloys has increased in the past decade because of their lower price, high tensile strength and high elastic modulus. Several factors are critical in ensuring successful bonding: the matching of the thermal coefficients of expansion and constraction of the porcelain and metal, the metallurgic composition of the alloy and the pretreatment procedures used in preparation of the metal substructure. Two ceramic base alloys (one alloy contains beryllium, another without) were studied. The surface textures were created by 50 um, 100 um aluminum oxide sandblasting, carbide bur, carborundum point and disk upon two base alloys, Rexillium Ⅲ and Wiron 88. The purposes of this investigation were to determine how these variations in surface texture affect the bond strength of the two ceramo-metal alloy systems. The following results were obtained: 1. Statistics revealed that bond strength was not significantly increased with surface roughness (p>0.05). 2. The shear bond strength for variable pretreatment methods were in the following sequence: 100 um Al �� O �� sandblasting, carbide bur, 50 um Al �� O �� sandblasting, carborundum point, disk. 3. The Rexillium Ⅲ alloy had a significantly higher bond strength than Wiron 88 alloy (p<0.05). 4. The Noritake porcelain showed a significantly higher bond strength than Biobond porcelain (p<0.05). 5. The fracture site was cohesive and adhesive mode treated with 50 um Al �� O ��, 100 um, Al �� O ��, carbide bur. But carborundum point and disk was adhesive mode. |
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