Asad Malik

10 Questions 7 Answers 0 Followers

Questions related from Asad Malik

Wear rate,wear volume,wear coefficient, cof questions?

Hello fellow researchers i am working on cermets tribology and using pin on disk methods with disk made of cermet sliding against a diamond pin.the tribometer data gives wear volume(mm3),wear...

25 July 2022 265 10 View

Chemical etchant for Niobium Carbide?

Greetings fellow researches. After thoroughly exhausting literature i am unable to find any chemical etchant for Niobium carbide. I am trying to etc NbC-Ni based cermets.Anyone with ething...

01 July 2022 3,442 2 View

Back scattered electron imaging issue cermets sem?

Hello fellow researchers.I have an nbc based cermet with nickel binder i am trying to do grain analysis and binder mean free path analysis.I grinded and polished the cermet to 1um via diamond...

18 June 2022 1,736 3 View

Flexural strength issues with SiC whiskers reinforcement?

In my literature review SIC microwhiskers reinforcement improves flexural strength of cermets.In my case SUbstituting 1W%sic in Carbide/bi nder cermets reduced it by 60%.The cermet binder powders...

02 June 2022 3,400 0 View

Removing nickel from alumina boat? Post sintering?

I am making cermets with nickel binder, post sintering excess nickel sticks to the crucible. What is a reasonable solution for Ni removal without damaging or reaction with alumina. I was thinking...

06 April 2022 2,109 3 View

Pellet deformation post sintering? NbCNi cermet?

Nbc12Ni cermet mixed in ethanol for 24hr uniaxially pressed to 3ton then cip pressed to 300mpa.sintered in a tube furnace with flowing ar atmosphere to1430c with a heating rate of 10c/min and...

01 December 2021 9,151 2 View

Grinding and polishing of Niobium based cemented carbides?etching and appropriate EBSD preparation?

Hello fellow researchers. I am working on Nbc based cermets via liquid phase sintering.I am preparing 11.5mm Dia circular sample with varying thickness(3-6mm) for optimization and grain...

21 November 2021 788 0 View

Volume and mass percent calculations.Cemented Carbides?

Respected researchers i am currently involved in making solid solutions of carbide powders.I am aware of calculations in weight percent.But a lot of publications are mentioning cermet composition...

08 November 2021 7,158 3 View

How to extract and dry powder samples from wet ball milling (carbide powders)?

I have to wet mill (Wc6co balls) carbide powders and need to extract the suspension with minimal waste. I would be using methanol as liquid agent. How should i extract the milled suspension then?...

27 October 2021 9,609 3 View

Ball to Powder ratio horizontal mill Carbide powders?

Hello fellow researchers. I am using a horzontal small scale mill (wisemix). Using hdpe 250ml bottle as the mixing container.I have tungsten carbide balls sized 3mm and 5mm and i am going to make...

26 October 2021 795 5 View