Micro powder injection molding of boron carbide components with SiC-Al2O3-Y2O3 sintering additives
نویسندگان
چکیده
منابع مشابه
Simulation and modeling of macro and micro components produced by powder injection molding: A review
During the recent years powder processing technologies have gained much attention due to the less energy consumption and recyclable powders. Manufacturing of complicated parts by the conventional powder metallurgy (PM) method is hard due to the uniaxial pressure, which leads to the low design flexibility. In order to prevail these constraints, powder injection molding (PIM) process, which inclu...
متن کاملThermal Processing of Injection-Molded Silicon Carbide
Silicon carbide is the most important and versatile non-oxide ceramic. Powder injection molding (PIM) is a method of high-speed fabrication of complex near-net shapes of SiC and other powders. Green micro-machining (GMM) is used to extend the shaping capability of green ceramics and powder metallurgy to smaller feature sizes. Debinding—removal of organic additives—is the rate-limiting step in P...
متن کاملOutstanding features of powder injection molding for micro parts manufacturing
When powder injection molding first appeared on the market, it was very well received for the potential it offered. However, the market did not grow as expected at that time. In recent years, the perseverance of manufacturers in this field has borne fruit, and today, the market is about 10 billion yen. However, looking at the market, one is still painfully aware of how low its recognition remai...
متن کاملThe effect of powder type and CaO additive on properties of sintered SiC by pressureless sintering in additive system of Al2O3-Y2O3-CaO
In this study, the effect of two types of SiC powders consist of SiC-1 (β-SiC) and SiC-2 (β-SiC+α-SiC) and also different values of CaO additive consist of 0, 0.4 and 0.8 weight percent on sintering behavior of sintered SiC with pressureless technique in Al2O3-Y2O3-CaO additive system was investigated. In all specimens, Al2O3:Y2O3 molar ratio was equal to 3:2 and all amounts of additive were e...
متن کاملMicro-powder injection molding: Investigation of powder-binder separation using synchrotron-based micro-tomography and 3D image analysis
Micro-powder injection molding (μ-PIM) is one of the most promising processes of mass production for the fabrication of small complexly shaped ceramic or metallic parts with high sintered density. However, dimensional accuracy of finished parts is difficult to achieve because of extremely high shear rates during the injection molding process. This promotes the separation of powder and binder ev...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chinese Journal of Aeronautics
سال: 2020
ISSN: 1000-9361
DOI: 10.1016/j.cja.2020.08.005