Abstract

An effective technique for making nonmagnetic Ni(W) solid solution using Ni and ammonium paratungstate (APT) as the starting materials was developed. It was found that powder particles using APT as the W source have larger contact area between W and Ni and higher activity, which is conducive to the mutual diffusion between Ni and W, leading to a faster solid phase reaction and higher content of W diffused into Ni. The value of magnetic saturation (Ms) of Ni(W) solid solution powders using APT as the tungsten source is nearly zero under the suitable diffusion condition (550 °C × 2 h +800 °C × 2 h in hydrogen), much lower than that when using W powder.

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

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.