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Polycrystalline Crucibles

Polycrystalline Translucent Ceramic Crucibles for TGA and DSC

Translucent Crucibles for TGA

CoorsTek translucent crucibles are manufactured using a unique ceramic injection molding process, making them ideal for TGA (thermogravimetry) and DSC (differential scanning calorimeter) analysis applications at the lowest cost of ownership. Sintered at very high temperatures (~1850°C) under reducing conditions, the properties of CoorsTek high-purity translucent alumina are almost identical to sapphire. 

Benefits of CoorsTek translucent crucibles:

  • Chemically inert, corrosion, and scratch resistance—preventing any contamination or reaction in most laboratory applications
  • Temperature resistant up to 1800 °C
  • Translucent and non-porous, meeting specifications of 100% sapphire crucibles at a fraction of the cost
  • High-volume production and thorough testing systems ensure the highest quality at the best value
  • High thermal conductivity ensures accuracy of thermal measurements
  • High purity base material of >99.99% aluminum oxide 


Our current product portfolio includes crucible sizes for most common thermoanalytical measurements and provides the precise dimensions required from analytical device suppliers. 

TABLE 1: POLYCRYSTALLINE SAPPHIRE CRUCIBLES
PRODUCT
ORDERING CODE
D (mm)
H (mm)
-
PC Sapphire Crucible (30µl)
8222 301 0018.1
6.0
2.6
ME-51140843
201-54321
PC Sapphire Crucible 40µl)
8222 301 0021.1
5.0
4
-
PC Sapphire Crucible (70µl)
8222 301 0014.1
6.0
4.5
ME-00024123
PC Sapphire Crucible 90µl)
8222 301 0024.2
6.5
4.5
TA 9600070.901
PC Sapphire Crucible (80µl)
8222 301 0020.1
5.0
8
DSC
PC Sapphire Crucible 85µl)
8222 301 0022.1
6.8
4
NE-399972
PC Sapphire Crucible (150µl)
8222 301 0017.1
8.0
4.5
ME-00024124
PC Sapphire Crucible 400µl)
8222 301 0023.1
8.0
12
-
PC Sapphire Crucible 850µl)
8222 301 0019.1
12.0
10
ME-51119960

Polycrystalline Crucible Lids

CoorsTek offers a compatible portfolio of crucible lids in a variety of sizes for certain thermoanalytical measurements (i.e. dilatometer for density measurements of liquid metals).

TABLE 2: POLYCRYSTALLINE SAPPHIRE CRUCIBLE LIDS
PRODUCT
ORDERING CODE
D (mm)
H (mm)
PC Sapphire Lid (5.0)
8222 301 0027.1
5
-
PC Sapphire Lid (6.0)
8222 301 0015.1
6
-
PC Sapphire Lid (6.5)
8222 301 0029.1
6.5
-
PC Sapphire Lid (6.8)
8222 301 0028.1
6.8
-
PC Sapphire Lid (8.0)
8222 301 0025.1
8
-
PC Sapphire Lid (12.0)
8222 301 0026.1
12
-

Standard white crucibles

Standard white alumina (Al2O3) alumina crucibles are also part of the CoorsTek portfolio. Matching lids and rods available upon request.

TABLE 3: STANDARD Al2O3 (WHITE) CRUCIBLES
PRODUCT
ORDERING CODE
D (mm)
H (mm)
Al2O3 Crucible (30µl)
8222 301 00421
6.0
2.6
Al2O3 Crucible (40µl)
8222 301 00431
5.0
4
Al2O3 Crucible (70µl)
8222 301 00441
6.0
4.5
Al2O3 Crucible (90µl)
8222 301 00451
6.5
4.5
Al2O3 Crucible (80µl)
8222 301 00461
5.0
8
Al2O3 Crucible (85µl)
8222 301 00471
6.8
4
Al2O3 Crucible (150µl)
8222 301 00481
8.0
4.5
Al2O3 Crucible (400µl)
8222 301 00491
8.0
12
Al2O3 Crucible (850µl)
8222 301 00501
12.0
10

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