Abstract
Alumina granule admixed with liquid paraffin was formed by flow compaction to square columnar-shaped green compact with eccentric and concentric spherical surfaces. The maximum sintered density was 96.6% on relative density by addition of liquid paraffin 2.5 mass% and compacting pressure of 98 MPa. Outer diameter of sintered compact was shrunk from green compact to 18%. The height from center of concentric spherical surface of sintered compact was shrunk from green compact to 18.7%. The height from center of eccentric spherical surface on sintered compact was shrunk from green compact to 18.5%. The difference of the shape precision of eccentric spherical surfaces at thin side on sintered compact by liquid paraffin content of 2.5 mass% and 5.0 mass% was not recognized. The difference of the shape precision between thin side and thick side of eccentric spherical surface on sintered compact by liquid paraffin content of 2.5 mass% was not recognized, it appeared the effect of flow compaction. However, in case of liquid paraffin content of 5.0 mass% exceeded the optimum value, the shape of thick side of eccentric spherical surface on sintered compact was smaller diameter than the shape of thin side.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
