Advanced Ceramics – Materials Properties for Impervious and Porous Haldenwanger Ceramics

Properties of Impervious Materials without Zirconia Y-TZP

Table 1 provided below gives the properties of impervious materials without zirconia Y-TZP.

Table 1. Properties of impervious materials without Zirconia Y-TZP

Material Units Alsint 99.7 Pythagoras 1800Z Pythagoras Zirconia MgO-PSZ Zirconia CaO-FSZ Halsic-I Halsic-S
Al2O3 content % 99.7 76 60 - - - -
Alkali content % - 0.5 3 - - - -
SiC content % - - - - - 88-92 99
Si-free % - - - - - 8-12 0.1
Type according to DIN EN 60672 - C 799 C 620 C 610 - - - -
Water absorption capacity % ≤0.2 ≤0.2 ≤0.2 ≤0.2 ≤0.2 ≤0.1 ≤0.1
Leakage rate at 20°C hPa dm3s-1 10-10 - 10-10 - - - -
Bulk density g.cm-3 3.75-3.94 3 2.6 5.6 5.4 3.1 3.1
Flexural strength 20°C (3-point) MPa 300 150 120 500 200 240-280 350-400
Flexural strength 1300°C (3-point) MPa - - - - - 250-300 370-420
Young’s modulus GPa 300-380 150 100 - - 370 420
Hardness (Mohs scale) - 9 8 8 - - - -
Thermal expansion 20-700°C 10-6 K-1 7.8 5.6 5.4 9.8 9.9 3.7 -
Thermal expansion 20-1000°C 10-6 K-1 8.6 6 6 10.3 - 4.3 5
Thermal conductivity 200°C Wm-1K-1 25 6 2 - - 100 124
Maximal approximate temp for load-bearing elements3 °C 1700 1600 1400 1500 2000 (w/o load) 1350 16004
Dielectric strength (IEC 672-2) kV.mm-1 17 17 17 - - - -
Resistivity at DC voltage 20°C Ω.cm 1014 1013 1013 - - - -
Thermal shock resistance - good excellent good good - good excellent
Diameter of pores, av µm - - - - - - -
Specific heat capacity 20-100°C J.kg-1.K-1 990 900 900 - - - -

Properties of Porous Materials

Table 2 shows the properties of porous materials.

Table 2. Properties of porous materials

Material Units Alsint porous Sillimantin 60 Sillimantin 65 Sillimantin 60 NG Sillimantin KS SiC clay bonded1 Halsic-R Halsic-RX Fused silica
Al2O3 content % 99.5 72-74 78-80 72-74 70 - - - -
Alkali content % - 1 1 1 1 - - - -
SiC content % - - - - - 70-90 99 99 -
Si-free % - - - - - - 0.1 0.1 -
Type according to DIN EN 60672 - - C 530 - - - - - - -
Water absorption capacity % 2.7 9 11 6 9 8-13 5 5 4.6
Leakage rate at 20°C hPa dm3s-1 - - - - - - - - -
Bulk density g.cm-3 3.6 2.40-2.45 2.45-2.50 2.60 2.40-2.45 2.2-2.5 2.7 2.7 1.92-2
Flexural strength 20°C (3-point) MPa 70-110 45 55 60 45 30 80-100 80-90 30-40
Flexural strength 1300°C (3-point) MPa - - - - - - 90-110 90-110 45-602
Young’s modulus GPa - 60 75 85 60 - 280 280 30-40
Hardness (Mohs scale) - - - - - - - - - -
Thermal expansion 20-700°C 10-6 K-1 7.8 5.3 5.3 5.2 5.3 5 3.9 3.9 -
Thermal expansion 20-1000°C 10-6 K-1 8.6 5.7 6.3 5.7 5.7 5 4.5 4.5 0.5-0.9
Thermal conductivity 200°C Wm-1K-1 - 1.4 1.4 - 1.4 - 35 35 -
Maximal approximate temp for load-bearing elements3 °C 1700 1350 1400 1600 1350 1300 16004
20005
approx 16504 1000
Dielectric strength (IEC 672-2) kV.mm-1 - - - - - - - - -
Resistivity at DC voltage 20°C Ω.cm - - - - - - - - -
Thermal shock resistance - good excellent excellent good excellent excellent excellent excellent excellent
Diameter of pores, av µm 1-3 2 1.5 8.5 2 3 24 24 0.2
Specific heat capacity 20-100°C J.kg-1.K-1 - 800 900 900 - - - - -

Results and Discussion

The listed values pertain to test specimens. They are only for reference purposes and cannot be unconditionally applied to other dimensions and shapes. Practically, Alsint 99.7 components provide mechanical strength values between 160 and 300 MPa, based on their actual shape, wall thickness, surface finish, post-processing and shaping process.

The test specimens were subject to the following conditions:

  1. Since different qualities are available (and for reference purposes only)
  2. At 700°C
  3. Dependent upon load
  4. Under oxidizing conditions
  5. Under inert atmosphere

This information has been sourced, reviewed and adapted from materials provided by Morgan Advanced Materials.

For more information on this source please visit Morgan Advanced Materials.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Morgan Advanced Materials - Technical Ceramics. (2019, February 04). Advanced Ceramics – Materials Properties for Impervious and Porous Haldenwanger Ceramics. AZoM. Retrieved on November 13, 2019 from https://www.azom.com/article.aspx?ArticleID=3648.

  • MLA

    Morgan Advanced Materials - Technical Ceramics. "Advanced Ceramics – Materials Properties for Impervious and Porous Haldenwanger Ceramics". AZoM. 13 November 2019. <https://www.azom.com/article.aspx?ArticleID=3648>.

  • Chicago

    Morgan Advanced Materials - Technical Ceramics. "Advanced Ceramics – Materials Properties for Impervious and Porous Haldenwanger Ceramics". AZoM. https://www.azom.com/article.aspx?ArticleID=3648. (accessed November 13, 2019).

  • Harvard

    Morgan Advanced Materials - Technical Ceramics. 2019. Advanced Ceramics – Materials Properties for Impervious and Porous Haldenwanger Ceramics. AZoM, viewed 13 November 2019, https://www.azom.com/article.aspx?ArticleID=3648.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Submit