Liquid phase sintering of TiN - Co and TiN - Wc - Co systems.

Liquid Phase Sintering of (Ti,Zr)C with WC-Co

(Ti,Zr)C powder was sintered with WC-Co following an industrial process, including an isotherm at 1410 °C. A series of interrupted sintering trials was performed with the aim of studying the sintering behavior and the microstructural evolution during both solid-state and liquid-state sintering. Reference samples, using the same elemental compositions but with the starting components TiC and ZrC...

Evaluation of fracture strength of TiN thin films deposited on WC-Co substrate

To evaluate the fracture strength of TiN thin films deposited on the hard metal substrate WC-Co, and to investigate the influence of the deposition conditions (bias voltage VB) on the fracture strength of TiN thin films, the sphere indentation test was carried out to determine the ring crack initiation strength σf,m in TiN thin films deposited on two kinds of WC-Co substrates differing in hardn...

Synthesis and liquid phase sintering of TiN/TiB2/Fe–Cr–Ni nanocomposite powder

Nanostructured TiN/TiB2/Fe–Cr–Ni composite powder has been prepared via high energy ball milling. Ti and BN powders are reacted to form uniform mixture of TiN and TiB2 within 2 h of milling by a mechanically activated self-sustaining reaction (MSR). The crystallite sizes of TiN nd TiB2 are about 7 and 16 nm, respectively, after 32 h of milling. Through liquid phase sintering and optimizing the ...

Growth of TiN on WC surfaces

The Role of the Binder Phase in the WC-Co Sintering

The sintering of hardmetal in the solid state is studied. The influence of the WC particle size on the sintering kinetics, the role of the binder phase in the densification process and how sintering depends on the heating conditions are investigated. It is observed that alloys with different WC particle size show quite different structural evolution during sintering, although the densification ...