Details

Autor(en) / Beteiligte

• Dong, Weiwei
• Zhu, Shigen
• Han, Bin
• Fan, Bowen
• Sun, Ze
• Luo, Yilan
• Bai, Yunfeng

Titel

Effects of Al2O3 platelet and VC additive on sintering and mechanical properties of WC-based composites by hot pressing

Ist Teil von

• Advances in applied ceramics, 2021-01, Vol.120 (1), p.17-23

Ort / Verlag

London, England: Taylor & Francis

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Fully dense WC-Al 2 O 3 platelet composites with VC additive were fabricated by hot-press sintering. Their mechanical properties and microstructure were examined. The contents of Al 2 O 3 platelet (Al 2 O 3pl ) and VC were optimised. The fracture toughness of WC-based composites would be obviously improved with Al 2 O 3pl addition. The defined addition of VC was beneficial for the densification and improved mechanical properties of the WC-based composites. The microstructure of the composites was fine, compact and homogeneous compared with the composites without VC addition. The range of fracture toughness of WC-Al 2 O 3pl composites was 9.3-13.5 MPa m 1/2 . The flexural strength of the composites varied a little and the maximum was 1289 MPa when the content of Al 2 O 3pl was 5 vol.-%, the content of VC was 0.5wt-%.