Wet Jet Milling of Ceramics Powder

Abstract:

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Wet jet milling is a new technology for the pulverization of powders, in which streams of slurry, higher than 100m/s, collide in the channel made of diamond. The effect of processing parameters was investigated in the system of BN/SiO2 mixed powders. The particle size after milling was evaluated by the measurement of BET surface area. The BET surface area of BN increased with increase in the number of milling, in the mixture ratio of SiO2/BN, in the particle size of SiO2 and in the processing pressure, whereas no significant change in the size of SiO2 particle was found. The surface area of BN increased by about 2.1 times by wet jet milling for only about 20 minutes (5 times).

Info:

Periodical:

Key Engineering Materials (Volumes 317-318)

Edited by:

T. Ohji, T. Sekino and K. Niihara

Pages:

49-52

DOI:

10.4028/www.scientific.net/KEM.317-318.49

Citation:

N. Omura et al., "Wet Jet Milling of Ceramics Powder", Key Engineering Materials, Vols. 317-318, pp. 49-52, 2006

Online since:

August 2006

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Price:

$35.00

[1] D. Tromans and J. A. Meech: Minerals Engineering Vol. 15 (2002), p.1027.

[2] E. Kim and C. Chen: Physics Letters A 319 (2003), p.384.

[10] [12] [14] [16] [18] 200. 1 1 10 Particle size of SiO2 (µm) BET surface area (m2/g).

[10] [12] [14] [16] [18] 200. 1 1 10 Particle size of SiO2 (µm) BET surface area (m2/g) Figure 8 Relation between BET surface area of BN and particle size of SiO2. (5times, 7: 3, 200MPa).

[10] [12] [14] [16] [18] [20] 100 150 200 BET surface area (m2/g) Processing pressure (MPa).

[10] [12] [14] [16] [18] [20] 100 150 200 BET surface area (m2/g) Processing pressure (MPa) Figure 9 Variation in BET surface area of BN with processing pressure. (5times, 7: 3, 4µm).

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