Journal ArticleDOI
Nanocrystalline high melting point compound-based materials
TLDR
In this article, different preparation methods of ultrafine powders of high melting point compounds (carbides, borides, nitrides, and oxides with melting temperatures higher than 2000 C) are reviewed and compared.Abstract:
The different preparation methods of ultrafine powders of high melting point compounds (carbides, borides, nitrides, and oxides with melting temperatures higher than 2000‡C) are reviewed. Some properties of these powders are discussed and compared. The consolidation behaviour of these compounds in the nanocrystalline (nc) state is described in detail. Compaction by hot pressing, including high pressures and high temperatures, sintering, and high-energy consolidation methods, is analysed. The microstructure, recrystallization, mechanical and physical properties of nc-carbides, nitrides, and oxides are characterized. Special attention is focused on relationships between structure and properties.read more
Citations
More filters
Journal ArticleDOI
Challenges and advances in nanocomposite processing techniques
TL;DR: In this article, the results from numerous studies on various methods for manufacturing nanocomposites with improved properties and retained nanostructures are discussed in detail in detail and recent advances are discussed.
Journal ArticleDOI
Processing of nanocrystalline ceramics from ultrafine particles
TL;DR: In this paper, the authors reviewed the variety of techniques currently used to manufacture ultrafine starting powders, compact the powders and sinter them into bulk nanocrystalline ceramics.
Journal ArticleDOI
Synthesis of TiO2 Nanocrystals by Nonhydrolytic Solution-Based Reactions
Journal ArticleDOI
Magnesium silicide nanoparticles as a deoxygenation agent for cancer starvation therapy
TL;DR: It is shown that an injectable polymer-modified magnesium silicide (Mg2Si) nanoparticle can act as a DOA by scavenging oxygen in tumours and form by-products that block tumour capillaries from being reoxygenated.
Journal ArticleDOI
Sintering and densification of nanocrystalline ceramic oxide powders: a review
TL;DR: In this article, various sintering and densification strategies were adopted, including pressureless sinter, hot pressing, hot isostatic pressing, microwave sinter and spark plasma sinter.
References
More filters
Journal ArticleDOI
On the validity of the hall-petch relationship in nanocrystalline materials
TL;DR: In this paper, a study experimentale de la variation de la durete en fonction de la grosseur de grain for des materiaux nanocristallins is presented.
Journal ArticleDOI
Ceramics ductile at low temperature
J. Karch,R. Birringer,H. Gleiter +2 more
TL;DR: In this paper, it was observed that polycrystalline ceramics became ductile permitting large (~100%) plastic deformations at low temperature if a polycrystaline ceramic was generated with a crystal size of a few nm.
Journal ArticleDOI
Hot isostatic pressing diagrams : new developments
TL;DR: In this paper, the equations and procedures for constructing hot-isostatic pressing diagrams are greatly simplified and clarified, and two further mechanisms are added: diffusional deformation of the particles themselves when the grain size is much smaller than the particle size, and the separation of pores from boundaries when grain growth occurs.