Thermal Stresses During Laser Processing of Ceramics

9634744适度拟议的研究涉及一项全面的、多学科的、平衡的实验和理论研究，以评估陶瓷在激光加工过程中的热应力。研究了不同激光光源对陶瓷进行激光打孔和切割时热应力场的性质和发展。此外，还将调查产生的微裂纹和宏观裂纹的原因和位置，以及将热应力损害降至最低的方法。研究人员拥有无损检测、激光加工和传热学方面的经验，非常适合进行这项研究工作。这些实验是独一无二的，应该提供对陶瓷加工过程的基本了解，这对陶瓷部件的成功制造非常重要。***

9634744 Modest The proposed research involves a comprehensive, multidisciplinary and well balanced experimental and theoretical study to evaluate thermal stresses in ceramics during laser machining. The nature and the development of thermal stress fields during laser drilling and cutting of ceramics with a variety of laser sources will be studied. Also, the cause of and location of resulting micro- and macro-cracks as well as ways to minimize thermal stress damage will be investigated. The investigators have a combination of experience in nondestructive testing, laser machining and heat transfer which is ideally suited for conducting this research effort. The experiments are unique and should provide fundamental understanding of the machining process for ceramics, which is very important for the successful manufacturing of ceramic components. ***