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Nickel-boron-coating calcium fluoride composite powder, preparation and application thereof and self-lubricating ceramic cutter
The invention relates to nickel-boron-coating calcium fluoride composite powder, a preparation method and an application thereof and a self-lubricating ceramic cutter. The nickel-boron-coating calcium fluoride composite powder has a CaF2@Ni-B core-shell structure and adopts an ultrasonic assistant chemical plating method: adding the activated CaF2 powder suspension liquid into a nickel-boron chemical plating solution, and precipitating nickel and boron and covering the surface of micrometer CaF2 with nickel and boron under the ultrasonic and stirring condition; the nickel-boron chemical plating solution contains 15g/L to 20g/L of nickel sulfate, 50 to 60 mL/L of ethylenediamine, 1 to 1.5 g/L of sodium borohydride and 30 to 50 g/L of sodium hydroxide. The invention also provides a preparation method and an application of the nickel-boron-coating calcium fluoride composite powder. The nickel-boron-coating calcium fluoride composite powder is charged into a self-lubricating ceramic cutter base body, so that the fracture flexibility and bend-resisting strength of the ceramic cutter can be remarkably improved.
Nickel-boron-coating calcium fluoride composite powder, preparation and application thereof and self-lubricating ceramic cutter
The invention relates to nickel-boron-coating calcium fluoride composite powder, a preparation method and an application thereof and a self-lubricating ceramic cutter. The nickel-boron-coating calcium fluoride composite powder has a CaF2@Ni-B core-shell structure and adopts an ultrasonic assistant chemical plating method: adding the activated CaF2 powder suspension liquid into a nickel-boron chemical plating solution, and precipitating nickel and boron and covering the surface of micrometer CaF2 with nickel and boron under the ultrasonic and stirring condition; the nickel-boron chemical plating solution contains 15g/L to 20g/L of nickel sulfate, 50 to 60 mL/L of ethylenediamine, 1 to 1.5 g/L of sodium borohydride and 30 to 50 g/L of sodium hydroxide. The invention also provides a preparation method and an application of the nickel-boron-coating calcium fluoride composite powder. The nickel-boron-coating calcium fluoride composite powder is charged into a self-lubricating ceramic cutter base body, so that the fracture flexibility and bend-resisting strength of the ceramic cutter can be remarkably improved.
Nickel-boron-coating calcium fluoride composite powder, preparation and application thereof and self-lubricating ceramic cutter
XU CHONGHAI (author) / XU LONGHUA (author) / XIAO GUANGCHUN (author) / YI MINGDONG (author) / WU GUANGYONG (author)
2015-10-07
Patent
Electronic Resource
English
IPC:
C09C
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
,
Behandlung von anorganischen Stoffen, außer von faserigen Füllstoffen, zum Erhöhen ihrer pigmentierenden oder füllenden Eigenschaften
/
C04B
Kalk
,
LIME
/
C10M
LUBRICATING COMPOSITIONS
,
Schmiermittelzusammensetzungen
/
C23C
Beschichten metallischer Werkstoffe
,
COATING METALLIC MATERIAL
| European Patent Office | 2020
| European Patent Office | 2015
| European Patent Office | 2020
| European Patent Office | 2015
| European Patent Office | 2015