PREPARATION OF ZrB₂ BY BORO/CARBOTHERMAL REDUCTION IN SPS DEVICE
Source abstract
Abstract
ZrB 2 ceramics were prepared by boro/carbothermal reduction, using spark plasma sintering (SPS). This technology allows to control and monitor the ongoing reduction reaction during the sintering of ZrO 2 and B 4 C powder mixtures with graphite, leading to the production of ZrB 2 . This work shows the effect of several parameters on the amount of produced ZrB 2 . The results are compared with literature data. Sintering temperatures in the range 1400 -1800 C were chosen for the experiment. For example, after sintering at a temperature of 1800 C, with a hold time of 15 min, the total amount of ZrB 2 produced from a powder mixture of stoichiometric ratio was more than 60 %. The porosity dropped with increasing sintering temperature to a final value of about 0.3 %. The number of pore sections per square unit dropped with the temperature as well. The final product is composed of very hard as well as rather soft components.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Nuclear materials and radiation effects · Advanced ceramic materials synthesis · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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