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Preparation method for antioxidant boron nitride graphite block material
The invention discloses a preparation method for an antioxidant boron nitride graphite block material. The invention relates to a preparation method for the antioxidant boron nitride graphite block material. The problem of poor mechanical property and inoxidizability of the existing boron nitride/graphite composite material can be solved. The preparation method comprises the following steps: (1), adding the graphite into the ammonia borane solution, stirring and heating at the same time, and distilling after the reaction, thereby obtaining the raw material powder; and (2), adding the raw material powder obtained in the step (1) into a mould, and pre-pressing to obtain the pre-pressed raw material; (3) heating the pre-pressed raw material obtained in the step (2), applying a mechanical pressure to the pre-pressed raw material, keeping the temperature and pressure, cooling to room temperature along with the furnace and releasing the pressure to obtain the antioxidant boron nitride graphite block material. The generating and sintering of the boron nitride phase can be finished at the same time, the reuniting and composition segregation of the material phase caused by the operation order of first synthesis operation and mixing operation can be avoided, the manufacture technology of the composite material is simplified and the combination property of the composite material is raised.
Preparation method for antioxidant boron nitride graphite block material
The invention discloses a preparation method for an antioxidant boron nitride graphite block material. The invention relates to a preparation method for the antioxidant boron nitride graphite block material. The problem of poor mechanical property and inoxidizability of the existing boron nitride/graphite composite material can be solved. The preparation method comprises the following steps: (1), adding the graphite into the ammonia borane solution, stirring and heating at the same time, and distilling after the reaction, thereby obtaining the raw material powder; and (2), adding the raw material powder obtained in the step (1) into a mould, and pre-pressing to obtain the pre-pressed raw material; (3) heating the pre-pressed raw material obtained in the step (2), applying a mechanical pressure to the pre-pressed raw material, keeping the temperature and pressure, cooling to room temperature along with the furnace and releasing the pressure to obtain the antioxidant boron nitride graphite block material. The generating and sintering of the boron nitride phase can be finished at the same time, the reuniting and composition segregation of the material phase caused by the operation order of first synthesis operation and mixing operation can be avoided, the manufacture technology of the composite material is simplified and the combination property of the composite material is raised.
Preparation method for antioxidant boron nitride graphite block material
ZHONG BO (author) / WEN GUANGWU (author) / CHAI ZHENFEI (author) / XIA LONG (author) / HUANG XIAOXIAO (author) / ZHANG XIAODONG (author) / FEI LIANDONG (author)
2015-05-06
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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