Carbon Determination in Small Amounts of Ceramic Powder by Coulombic Titration

A new method for carbon determination in small samples was demonstrated. This method involves coulometric titration of an oxygen titrant through a solid‐electrolyte (yttria‐stabilized zirconia) tube. Oxygen is electrolytically introduced to a sealed sample chamber, and the partial pressure of oxygen...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1995-10, Vol.78 (10), p.2834-2836
Main Authors: Hirakata, Keigo, Rhine, Wendell E., Cima, Michael J.
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Carbon
Ceramic industries
Ceramic powders
Ceramics
Chemical industry and chemicals
Electrotechnical and electronic ceramics
Exact sciences and technology
Technical ceramics
Titration
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Summary:A new method for carbon determination in small samples was demonstrated. This method involves coulometric titration of an oxygen titrant through a solid‐electrolyte (yttria‐stabilized zirconia) tube. Oxygen is electrolytically introduced to a sealed sample chamber, and the partial pressure of oxygen is monitored as more oxygen is pumped. The point at which the oxygen partial pressure begins to rise is the end point. The method can accurately determine microgram quantities of carbon in 15‐mg samples. This method can determine microgram quantities of carbon and is, therefore, more sensitive than conventional combustion analysis. This method is ideal for investigating the carbon content of individual small electrical ceramic parts, such as multilayer ceramic capacitors.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1995.tb08062.x