2011 Fiscal Year Final Research Report
Clarification of dominant factor for grain growth in binderless WC hard ceramics
| Project/Area Number |
22760553
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Material processing/treatments
|
|---|
| Research Institution | Akita University |
|---|
Principal Investigator |
NINO Akihiro 秋田大学, 工学資源学研究科, 助教 (80451649)
|
|---|
| Project Period (FY) |
2010 – 2011
|
| Keywords | 炭化タングステン / 焼結 / 機械的性質 / 粒成長 |
|---|
| Research Abstract |
WC, WC-V_8C_7, and WC-Cr_3C_2 hard ceramics without a metallic binder were sintered densely using a resistance-heated hot-pressing machine. WC grain growth affecting mechanical properties was inhibited by the existence of the W_2C type phase. The hardness of the binderless WCs decreased with increasing average grain size. There is a good correlation between the hardness value and the average grain size. The mechanical property of dense binderless WCs was firmly controlled by the average grain size through controlled carbon amount.
|
Research Products
(8 results)
