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Carbon Determination in Small Amounts of Ceramic Powder by Coulombic Titration
Author(s) -
Hirakata Keigo,
Rhine Wendell E.,
Cima Michael J.
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08062.x
Subject(s) - coulometry , titration , oxygen , carbon fibers , partial pressure , ceramic , electrolyte , materials science , cubic zirconia , yttria stabilized zirconia , analytical chemistry (journal) , chemistry , inorganic chemistry , chromatography , electrode , metallurgy , composite material , electrochemistry , organic chemistry , composite number
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.