Reactive and non-reactive preparation of B6O materials by FAST/SPS

Reactive and non-reactive preparation of B6O materials by FAST/SPS
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利用 FAST/SPS 反应和非反应制备 B6O 材料

DOI:
10.1016/j.jeurceramsoc.2014.08.003
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发表时间:
2015
影响因子:
5.7
通讯作者:
Michaelis
Michaelis
中科院分区:
材料科学1区
文献类型:
--
作者:
Thiele;Herrmann;Müller;Gestrich;Michaelis

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采用FAST/SPS反应烧结和非反应烧结工艺,在1850° C的烧结温度下制备了B 6 O材料。对比研究了它们的烧结行为、物相和显微组织的形成以及力学性能。我们表明,反应烧结的B/B 2 O 3-混合物与氧化物烧结添加剂是一个有前途的和成本效益的替代致密化预合成B 6 O与所得的硬度高达22 GPa(HV 5)和断裂韧性高达3 MPa m(SEVNB)类似于非反应性制备的B 6 O材料。反应性和非反应性烧结材料的抗弯强度分别高达360 MPa和540 MPa,且受烧结液中B 2 O3含量的影响显著。
B 6 O materials were prepared by a reactive and a non-reactive sintering routine using FAST/SPS and sintering temperatures of 1850° C. Their sintering behavior, phase and microstructure formation and the mechanical properties are comparatively discussed. We demonstrate that the reactive sintering of B/B 2 O 3-mixtures with oxide sintering additives is a promising and cost-effective alternative to the densification of pre-synthesized B 6 O with a resulting hardness of up to 22 GPa (HV 5) and a fracture toughness of up to 3 MPa m (SEVNB) similar to non-reactive prepared B 6 O materials. The flexure strength is up to 360 MPa and 540 MPa for the reactive and non-reactive sintered materials, respectively, and substantially affected by the amount of B 2 O 3 in the sintering liquid.
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发表时间: 2010-04
影响因子: 5.7
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