Journal ArticleDOI
Microwave sintering of tungsten
Reads0
Chats0
TLDR
In this article, the effects of high-energy milling on the sinterability of tungsten in microwave and to make a comparative assessment between as-received (coarser) and activated (finer) Tungsten powder in terms of their response to microwave sintering, densification and microstructure.Abstract:
This study aims at microwave sintering of pure tungsten powder of as-received grade and tungsten powder activated by high-energy milling (HEM). Both the powder compacts are sintered under identical conditions and their sinterability is compared and analyzed for process optimization. Activated powder responds to microwaves and shows significant densification in a relatively shorter duration. The scope of the present work is to understand the effects of high-energy milling on the sinterability of tungsten in microwave and to make a comparative assessment between as-received (coarser) and activated (finer) tungsten powder in terms of their response to microwave sintering, densification and microstructure.read more
Citations
More filters
Journal ArticleDOI
Microwave versus conventional sintering: A review of fundamentals, advantages and applications
Morteza Oghbaei,Omid Mirzaee +1 more
TL;DR: Microwave sintering has emerged as a new method for sinterding a variety of materials that has shown significant advantages against conventional sinterging procedures as mentioned in this paper. But microwave sinterings are not suitable for all materials.
Journal ArticleDOI
Microwave–material interaction phenomena: Heating mechanisms, challenges and opportunities in material processing
TL;DR: In this paper, most of the significant phenomena that cause heating during microwave-material interaction and heat transfer during microwave energy absorption in materials are discussed. But, the mechanisms associated with the processing are less understood; popular mechanisms such as dipolar heating and conduction heating have been mostly explored.
Journal ArticleDOI
A new approach to joining of bulk copper using microwave energy
TL;DR: In this article, a novel method for joining of bulk metallic materials through microwave heating is described, where a sandwich layer of copper powder with approximately 0.5mm thickness was introduced between the two candidate surfaces.
Journal ArticleDOI
Microwave dielectric heating: Applications on metals processing
TL;DR: In this paper, the authors consolidate the fundamentals of microwave heating applications as a time and energy saving application and address its various applications and mechanisms with metal interactions seeking a more sustainable environment.
Journal ArticleDOI
Microwave synthesis and properties of fine-grained oxides dispersion strengthened tungsten
TL;DR: In this paper, it was found that the addition of Y2O3 nano-particles could significantly hinder the grain growth of tungsten in the consolidation process, decreasing the average grain size from 3.2μm in pure W down to 0.7μm.
References
More filters
Journal ArticleDOI
Microwave sintering of W¿Ni¿Fe alloy
TL;DR: In this paper, the effect of heating mode on the microstructure and mechanical properties of 92.5W 6.4Ni 1.1Fe alloy was compared with a conventional furnace and a 2.45 GHz microwave furnace.
Journal ArticleDOI
Microwave Processing of Ceramics - An Overview
TL;DR: The microwave processing of ceramics is still in an early developmental stage, and there are many areas yet to be explored, challenges to be met, and economic and commercial payoffs to be substantiated.
Journal ArticleDOI
Improved mechanical properties and microstructural development of microwave sintered copper and nickel steel PM parts
TL;DR: In this article, the improved mechanical properties and microstructural development of microwave sintered copper and nickel steel PM parts as compare to conventional sintering methods were reported. But despite substantial R&D investment in this area in the past two decades, no competitive microwave technology has yet emerged for powder metallurgy (PM) sinterings.