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将氮化硅陶瓷的样品经过抛光、清洗、退火等处理后,用离子束辅助沉积(IBAD),离子注入对其进行表面处理,所选用元素为Ti。辅助轰击的离子为Ar+和Ti+,能量为100KeV;注入离子能量为80KeV和100KeV,注入剂量范围为1016至1017Ti/cm2。用X射线衍射法和AES对样品的结构和Ti的深度分布进行了测试,发现注入样品的晶格结构遭到了一定程度的破坏,并且有TiN等新相析出。IBAD样品的抗弯强度增加较大,比未处理样品提高9%。注入样品的抗弯强度值随剂量增加而逐步增加。注入样品的显微硬度和断裂韧性随剂量的增加而下降
After the sample of silicon nitride ceramic is polished, cleaned, annealed and the like, it is surface-treated by ion beam assisted deposition (IBAD) and ion implantation, and the selected element is Ti. The ions bombarded for bombardment were Ar + and Ti + and the energy was 100 KeV; the energy of implanted ions was 80 KeV and 100 KeV, and the implantation dose range was 1016 to 1017 Ti / cm2. The structure of sample and the depth distribution of Ti were tested by X-ray diffraction and AES. It was found that the lattice structure of the implanted sample was destroyed to a certain degree, and new phases such as TiN were precipitated. The flexural strength of IBAD samples increased significantly, 9% more than the untreated samples. The flexural strength of injected samples gradually increased with dose. The microhardness and fracture toughness of the injected samples decreased with the increase of dose