Barium osumilite

The first composite system is a barium osumilite composition reinforced with 30 wt% (25 vol%) No. 1 whiskers. The second composite system evaluated is a barium-stuffed cordierite matrix 30 wt% No. 1 whisker composite. The room-temperature properties of these two composites are given in Table 3.16. 

Barium Osumilite. A glass-ceramic formulation BaMg2Al3(Si9Al303o) patented by J. J. Brennan et al (U.S. Pat 4589900,1986, used as the foundation material for composites. 

OstwaM Ripening. Grain growth due to differential dissolution between particles of different sizes and shapes. Solute dissolves at sharp corners, or from small particles, and tends to reprecipitate on coarser, larger or rounder particles, which grow at the expense of fine particles. Osumilite - see barium osumilite. Outside Vapour - phase Oxidation (MCVD, OVPO and VAD). See optical fibres. 

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