A novel approach of fabricating monodispersed spherical MoSiBTiC particles for additive manufacturing.
A novel approach of fabricating monodispersed spherical MoSiBTiC particles for additive manufacturing.
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DOI：
10.1038/s41598-021-96187-w
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发表时间：
2021-08-16
影响因子：
4.6
通讯作者：
Nomura N
中科院分区：
文献类型：
--
作者：
Zhou Z;Guo S;Zhou W;Nomura N
由于球形耐火材料的熔点高、成分复杂，制备用于添加剂制造的球形耐火材料粉末具有很大的挑战性。在本研究中，发展了一种无需熔化过程即可制备球形MoSiBTiC颗粒的新技术--冷冻干燥脉动孔板喷射法(FD-POEM)。将元素纳米粉末分散在水中制备高浓度浆料，然后通过隔膜振动从孔口挤出，并在液氮中瞬间冻结。经冷冻干燥后，可得到任意组成比的球形复合粒子。所制得的FD-PONE粒子尺寸范围窄，元素分布均匀。由于冰晶的升华作用，在FD-POEM颗粒内部形成了网状结构。此外，由于其球形的形貌，FD-PENG颗粒具有42.6°的低雪崩角，表现出良好的流动性。因此，FD-POEM和添加剂制造的结合在开发工业应用中使用的复杂耐火材料方面具有巨大的潜力。
It is very challenging to fabricate spherical refractory material powders for additive manufacturing (AM) because of their high melting points and complex compositions. In this study, a novel technique, freeze-dry pulsated orifice ejection method (FD-POEM), was developed to fabricate spherical MoSiBTiC particles without a melting process. Elemental nanopowders were dispersed in water to prepare a high-concentration slurry, which was subsequently extruded from an orifice by diaphragm vibration and frozen instantly in liquid nitrogen. After a freeze-drying process, spherical composite particles with arbitrary composition ratios were obtained. The FD-POEM particles had a narrow size range and uniform elemental distribution. Mesh structures were formed within the FD-POEM particles, which was attributed to the sublimation of ice crystals. Furthermore, owing to their spherical morphology, the FD-POEM particles had a low avalanche angle of 42.6°, exhibiting good flowability. Consequently, the combination of FD-POEM and additive manufacturing has great potential for developing complex refractory components used in industrial applications.
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影响因子：
9.4
作者：
Thijs, Lore;Verhaeghe, Frederik;Kruth, Jean-Pierre
通讯作者：
Kruth, Jean-Pierre
DOI：
10.1016/j.jmatprotec.2003.11.051
发表时间：
2004-06-10
影响因子：
6.3
作者：
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通讯作者：
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影响因子：
4.6
作者：
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通讯作者：
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影响因子：
1.4
作者：
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通讯作者：
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影响因子：
8.4
作者：
Ali, Usman;Mahmoodkhani, Yahya;Toyserkani, Ehsan
通讯作者：
Toyserkani, Ehsan