Jones D W
Division of Dental Biomaterials Science, Faculty of Dentistry, Dalhousie University, Halifax, Nova Scotia, Canada.
Ann N Y Acad Sci. 1988;523:19-37. doi: 10.1111/j.1749-6632.1988.tb38498.x.
An improved understanding of the complexity of the chemical bond theory as it applies to multiphase alloys is developing. A better understanding of compatibility of alloy and ceramic during refiring schedules based upon leucite phase transformations and the ramifications for porcelain failure is emerging. It may also be possible to use other high-expansion glass-ceramic compositions for coating metals. The limitations of bond test methods have been identified. Future bond test methods should aim to make use of fracture toughness theory. Ideally, it should be possible to specify ceramic-to-metal interfacial fracture toughness as a percentage of the fracture toughness of the ceramic interface material. Wet chemical methods have the potential to produce a number of innovative advances in new ceramic and glass biomaterials. These systems may provide a useful method for initial ceramic precoats on metals.
人们对化学键理论应用于多相合金时的复杂性有了更深入的理解。基于白榴石相变以及对瓷器失效影响,人们对合金与陶瓷在再烧制过程中的相容性有了更好的理解。使用其他高膨胀微晶玻璃成分涂覆金属也成为可能。已经明确了键合测试方法的局限性。未来的键合测试方法应致力于利用断裂韧性理论。理想情况下,应该能够将陶瓷与金属的界面断裂韧性指定为陶瓷界面材料断裂韧性的百分比。湿化学方法有可能在新型陶瓷和玻璃生物材料方面带来许多创新性进展。这些体系可能为金属表面的初始陶瓷预涂层提供一种有用的方法。