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Precision Ceramics

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Macor Machinable Glass Ceramic - Chemical Properties
 

Key Services & Products

 

 

Macor is an outstanding engineering material and is machinable with ordinary metalworking tools. Macor is also a problem solving material combining the performance of a technical ceramic with the versatility of a high performance plastic.

 

Macor has a high use temperature (800°C continuous to 1,000°C peak). It has a low thermal conductivity and is a useful high temperature insulator as well as an excellent electrical insulator. Macor has no porosity and when properly baked out, will not outgas. It is strong and rigid and, unlike high temperature plastics, will not creep or deform. Macor is also radiation resistant.

 

Macor is pure white and can be highly polished. It can be thick or thin film metallised, brazed and epoxy bonded. Another major advantage of this unique material is that, even in small quantities, components are economical to manufacture. 

 

Chemical Properties
Tests

Results
Weight Loss
(mg/cm2)

Solution

 pH

Time

Temp

Gravimetric

5% HCl (Hydrochloric Acid)

0.1

24 hrs

95ºC

~ 100

0.002 HNO3 (Nitric Acid)

2.8

24 hrs

95ºC

~ 0.6

0.1 NaHCO3 (Sodium Bicarbonate)

8.4

24 hrs

95ºC

~ 0.3

0.02 Na2CO3 (Sodium Carbonate)

10.9

6 hrs

95ºC

~ 0.1

5% NaOH (Sodium Hydroxide)

13.2

6 hrs

95ºC

~ 10

Resistance to water
over time
H2

7.6 

1 day*

95ºC

0.01

3 days*

95ºC

0.07

7 days*

95ºC

9.4

3 days**

95ºC

0.06

6 days**

95ºC

0.11

*Water not freshened daily **Water freshened daily 

 

Please click the option on the main 'Properties' drop down menu above for further details of Macor's unique electrical, mechanical and thermal properties.

 

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The Markets We Serve

Aerospace

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Electronic

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Medical

Nuclear Power

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