Ny fahasamihafana misy eo amin’ny vovoka corundum fotsy ary vovoka alumina

Ny vovoka korundum fotsy sy ny vovoka alumina dia mitovy endrika sy anarana mitovy. Olona maro no te hanazava ny fahasamihafana misy eo amin’izy ireo. Ny Qianjiaxin Refractory manaraka ireto dia hanavaka azy amin’ny firafiny manokana.

1. Vovoka korondum fotsy

(1) endrika kristaly: rafitra kristaly trigonal;

(2) Hateza: 3.90 g/cm3;

(3) hamafin’ny: Knoop hamafin’ny 2000-2200Kg/mm2, Mohs hamafin’ny 9.0;

(4) Taona mitsonika: 2250C;

(5) mari-pana miasa ambony indrindra: 1900C;

(6) hafanana manokana (Cal/gC): 0.26 (20-90C);

(7) Conductivity mafana: 900C amin’ny mari-pana (Cal/cm3.sec.C);

(8) Fanondroana refractive: e=1.760 w=1.768 (Na line);

(9) Coefficient ny fanitarana linear: (7-9)*10^-6/K(0-1600C).

2. vovoka alumina

(1) Fisehoana: vovoka fotsy, dingana kristaly γ;

(2) salan’isa ampahany (nm): 20±5;

(3) % votoaty: mihoatra ny 99.9%;

(4) Fandoroana teboka: 2010 ℃-2050 ℃;

(5) Teboka mangotraka: 2980 ℃;

(6) Ny hakitroky havanana (rano = 1): 3.97-4.0;

(7) Loko: fotsy, manga maizina aorian’ny calcination.

White corundum vovoka azo ampiasaina ho toy ny fifandraisana haino aman-jery, insulators sy mazava tsara fanariana fasika, sns Alumina vovoka ze azo ampiasaina amin’ny hafanana conduction, poloney, electroplating, catalyst, sns.