Large-scale growth of TiB2 hexagonal platelets
Source abstract
Abstract
Abstract This work reports on large scale growth of TiB2 hexagonal platelets on Ti3AlC2 samples prepared by pressureless sintering of Ti/Al/C green bodies in a graphite crucible coated with boron nitride. Single TiB2 platelet has a hexagonal shape with a particle size of less than 20 μm and a thickness of less than 1 μm. Some thicker platelet particles are composed of layer-stacking TiB2 thinner platelets. The growth mechanism of TiB2 hexagonal platelets has been discussed. The coexistence of exothermic reactions and liquid in the Ti-Al-C-BN system plays a key role in the hexagonal crystal growth of TiB2. Influence of Al content in the Ti-Al-C-BN system on the formation of TiB2 platelets has been also investigated. Phase composition was analyzed by X-ray diffraction, and microstructure of TiB2 hexagonal platelets was characterized by using scanning electron microscopy. The fabrication method developed here is a promising approach for preparing TiB2 platelet particles on a large scale.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: MXene and MAX Phase Materials · Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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