Bambanci tsakanin farin corundum foda da alumina foda

Farin corundum foda da alumina foda suna da kamanni iri ɗaya da sunaye iri ɗaya. Mutane da yawa suna so su fayyace bambancin da ke tsakaninsu. Abubuwan Refractories Qianjiaxin masu zuwa za su bambanta shi da nasa tsarin.

1. Farar fata corundum

(1) Siffar Crystal: tsarin crystal trigonal;

(2) Yawan: 3.90 g/cm3;

(3) Taurin: Knoop hardness 2000-2200Kg / mm2, Mohs taurin 9.0;

(4) Matsayin narkewa: 2250C;

(5) Matsakaicin zafin aiki: 1900C;

(6) Musamman zafi (Cal/gC): 0.26 (20-90C);

(7) Ƙarfafawar thermal: 900C a dakin da zafin jiki (Cal / cm3.sec.C);

(8) Fihirisar magana: e=1.760 w=1.768 (Na layi);

(9) Ƙimar faɗaɗa madaidaiciya: (7-9)*10^-6/K(0-1600C).

2. Alumina foda

(1) Bayyanar: farin foda, lokaci na crystalline γ lokaci;

(2) Matsakaicin girman barbashi (nm): 20± 5;

(3) Abun ciki%: fiye da 99.9%;

(4) Matsayin narkewa: 2010 ℃-2050 ℃;

(5) Tafasa: 2980 ℃;

(6) Ƙimar dangi (ruwa = 1): 3.97-4.0;

(7) Launi: fari, duhu shuɗi bayan calcination.

White corundum foda za a iya amfani da matsayin lamba kafofin watsa labarai, insulators da daidaitattun simintin gyaran kafa yashi, da dai sauransu Alumina foda ze za a iya amfani da zafi conduction, polishing, electroplating, kara kuzari, da dai sauransu.