Zirconia Ceramics ( ZrO2 )

Zirconias (ZrO2) are extremely refractory materials. They possess excellent chemical inertness and corrosion resistance at temperatures well above the melting point of alumina. McDanel Advanced Ceramic Technologies LLC zirconias are stabilized in the cubic crystal structure to avoid cracking and mechanical weakening during heating and cooling. In addition to their refractoriness, they offer low thermal conductivity and are electrical conductors above 800°C. They also possess the unique ability to allow oxygen ions to move freely through the crystal structure above 600°C.

Grades and Applications of Z105 Zirconia

Table 1. Grades and typical uses of zirconia.

Grades

Typical Uses

Z105 is a fine grained, high density, cubic crystal, yttria (10.5%) stabilized zirconia. It is an excellent general purpose zirconia. Available by quotation..

Oxygen sensors, thermocouple protection tubes, furnace muffles, liners, crucibles, high temperature heating element support.

Composition of Z105 Zirconia

Table 2. Composition of zirconia Z105.

Zirconia

ZrO2

88.642%

Yttria

Y2O3

10.5%

Silica

SiO2

0.4%

Alumina

Al2O3

0.17%

Titania

TiO2

0.14%

Calcia

CaO

0.1%

Iron Oxide

FeO3

0.03%

Magnesia

MgO

0.01%

Sodium Oxide

Na2O

0.006%

Potassium Oxide

K2O

0.002%

Physical Properties of Z105 Zirconia

Table 3. Physical properties of zirconia Z105.

Bulk Density

Open Porosity

Strength 20°C

Compressive Strength 20°C

5.92g.cm3

0%

276MPa

>1772MPa

370 lb/ft3

0%

40ksi

>250ksi

Thermal Properties of Z105 Zirconia

Table 4. Thermal properties of zirconia Z105.

Conductivity

Expansion Co-Efficient 20-1000°C

Max. Use Temp (no load)

20°C

800°C

2W/m.K

2W/m.K

11.3x10-6/°C

2200°C

14BTU.in/ft2.hr.°F

14BTU.in/ft2.hr.°F

6.3 x10-6/°C

4000°F

Tolerances of Z105 Zirconia Components

Table 5. Dimensional tolerances of zirconia Z105 components

Material

To maximum outside diameter of:

25.4mm (1")

50.8mm (2")

Zirconia

±5% or ±.65mm
±(0.025") min.

±4% or 1.27mm
±(0.050”) min

Various lengths available upon request. Standard length tolerance is 1.575mm (1/16). Standard cambar tolerance is .794mm per 305mm (1 foot). Tighter tolerances and non-catalog tolerances are provided by quotation.

Source: McDanel Advanced Ceramic Technologies

For more information on this source please visit McDanel Advanced Ceramic Technologies

Citations

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

  • APA

    McDanel Advanced Ceramic Technologies LLC. (2019, April 25). Zirconia Ceramics ( ZrO2 ). AZoM. Retrieved on October 29, 2020 from https://www.azom.com/article.aspx?ArticleID=3162.

  • MLA

    McDanel Advanced Ceramic Technologies LLC. "Zirconia Ceramics ( ZrO2 )". AZoM. 29 October 2020. <https://www.azom.com/article.aspx?ArticleID=3162>.

  • Chicago

    McDanel Advanced Ceramic Technologies LLC. "Zirconia Ceramics ( ZrO2 )". AZoM. https://www.azom.com/article.aspx?ArticleID=3162. (accessed October 29, 2020).

  • Harvard

    McDanel Advanced Ceramic Technologies LLC. 2019. Zirconia Ceramics ( ZrO2 ). AZoM, viewed 29 October 2020, https://www.azom.com/article.aspx?ArticleID=3162.

Tell Us What You Think

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

Leave your feedback
(Logout)
Submit

Insights into microCT technology: evolvement, applications, and automation

In this interview, Dirk Laeveren and Mark Riccio, Product Marketing Managers for the microCT product line at Thermo Fisher Scientific, discuss microCT, including the possibilities it provides in various applications, and ways to combine it with other visualization techniques.

Insights into microCT technology: evolvement, applications, and automation
High-Frequency In-Vacuum Cables—to 40 GHz

High-Frequency In-Vacuum Cables—to 40 GHz

For high-frequency signal generation and detection in-vacuum (HV/UHV), Allectra has developed two feedthroughs, the 242-SMAD27G and the 242-SMAD40G, which allow up to 27 and 40 GHz frequencies, respectively. To complement these, we are introducing new K-type SMA cables for in-vacuum use, the 380-SMAK series.

From Allectra Limited

Sponsored Content

Newsletters you may be interested in

See all Newsletters »