Research Topic

Powder Sintering and Potential Applications

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Powder sintering is a technique used for bonding powder particles together into a coherent bulk solid structure. Its advantages are cost effective, reducing machining by near-net-shape forming, minimizing material losses by decreasing the processing steps, processing materials that would otherwise be ...

Powder sintering is a technique used for bonding powder particles together into a coherent bulk solid structure. Its advantages are cost effective, reducing machining by near-net-shape forming, minimizing material losses by decreasing the processing steps, processing materials that would otherwise be impossible to mix, processing materials with very high melting points, and achieving controlled levels of porosity and superior properties, etc. Specifically, activation and field-assisted sintering (spark plasma sintering) technologies developed recently have been widely employed to fabricate various kinds of bulk materials with controlled microstructures. Particularly hot topics in powder sintering now-a-days include densification mechanisms associated with powder properties and sintering parameters, the relationship between sintering parameters, microstructure, and properties, as well as novel sintering technologies and their applications, etc.

Powder sintering covers various mechanisms of solid phase sintering, liquid phase sintering, pressure sintering, activation sintering, field-assisted sintering, and infiltration, etc. During powder sintering, specific physical and chemical processes such as diffusion, recrystallization, creep, and melting of powder particles facilitates powder shrinkage and densification. The aim of this Research Topic is to compile recent developments in powder sintering and its potential applications. This Research Topic welcomes the submission of original research, state-of-the-art reviews, and perspectives on recent developments in powder sintering and potential applications.
Suggested contributions may include, but are not limited to:

 • The evolution of microstructure and physical properties of powder particles during synthesis and processing, such as mechanical alloying, atomization, electrolysis, etc.
 • Densification mechanisms associated with powder properties and sintering parameters in various sintering technologies, including vacuum sintering, hot isostatic pressing, metal injection molding, field-assisted sintering (such as spark plasma sintering), etc.
 • Sintered materials and the relationships between their sintering parameters, microstructure, and properties when undergoing various sintering mechanisms, including solid phase sintering, liquid phase sintering, pressure sintering, activation sintering, field-assisted sintering, infiltration, etc.
 • Porous metal materials fabricated by powder sintering
 • Relationship between mechanics of powder particles and powder densification
 • Relationship between mechanics of sintered materials and their microstructures
 • Modification of sintered materials, e.g. surface processing, heat treatment, etc.
 • Sintered biomaterials, e.g., biomedical titanium and titanium alloys (characterization, fabrication technologies, and biocompatibility, etc.)
 • Structural metallic alloys and ceramics (microstructure, performance, durability, and sustainability, etc.)

Aside from the above-suggested themes, other original research closely related to powder sintering and potential applications is also highly welcome.


Keywords: Powder Sintering, Densification, Structure, Mechanics, Properties, Applications


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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