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

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

203.2

2254

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

Crucibles (857.34k)

Technical data sheet crucibles.