Magnesia crucible

Magnesium Oxide (MgO) crucibles have a fine-grained structure with low open porosity. The density is 3.45 g/cm3 with less than 1% open porosity.

This material contains 2% Yttrium Oxide (Y2O3) to facilitate the sintering of Magnesium. Yttrium Oxide is completely inert and behaves similarly to MgO in all applications.

Magnesia crucibles have a mechanical strength and thermal shock resistance lower than those of Alumina crucibles. They require heating and cooling to be as homogeneous as possible.

They resist up to around 2000˚C.

Chemical analysis

  • MgO + Y2O3 99.38 %
  • CaO 0.38 %
  • SiO2 0.4 %
  • Al2O3 0.03 %
  • Fe2O3 0.07 %
  • B2O3 0.01 %

Ext. Diam.

(mm)

H

(mm)

Vol.

(cm3)

Ext. Diam.

(mm)

H

(mm)

Vol.

(cm3)

Ext. Diam.

(mm)

H

(mm)

Vol.

(cm3)

12.7 25.4 1 38.1 76.2 63 76.2 101.6 380
18.0 40.6 5 44.4 88.9 99 76.2 146.1 547
19.1 25.4 4 50.8 50.8 75 88.9 152.4 804
25.4 25.4 7 50.8 88.9 135 91.9 152.4 865
25.4 31.8 9 50.8 152.4 234 95.3 152.4 932
25,4 76.2 24 57.2 88.9 176 101.6 114.3 777
31.8 31.8 16 63.5 76.2 189 101.6 152.4 1044
31.8 50.8 46 63.5 139.7 354 114.3 152.4 1343
31.8 63.5 56 69.9 88.9 274 127.0 203.2 2254

Side thickness of 2.5 to 4 mm depending on the crucible diameter.

Crucibles (857.34k)

Technical data sheet crucibles.