Ernest Kirkendall
Ernest Kirkendall (born July 6, 1914 in East Jordan , Michigan , † August 22, 2005 in Alexandria (Virginia) ) was an American chemist and metallurgist. He observed changes in volume at the boundary between two metals when they are heated. This effect caused by different diffusion speeds is called the Kirkendall effect after him .
Life
Kirkendall grew up in Highland Park , Michigan. He studied at Wayne State University until 1934 and received his master's degree from the University of Michigan in 1935 , where he also received his doctorate in 1938 . From 1941 to 1946 he was a lecturer at Wayne University. From 1947 to 1965 Kirkendall worked at the "American Institute of Mining, Metallurgical and Petroleum Engineers", then with the "United Engineering Trustees". After all, he was Vice President of the American Iron and Steel Institute .
meaning
Kirkendall's discovery was of great importance in understanding diffusion in solids , as it demonstrated that diffusion occurs through vacancies . In addition, the effect named after him has an effect on the stability of welded joints, for example, at elevated temperatures or under irradiation.
Private
Kirkendall was married twice (to Maxine Marrs and Anneliese Sisco), he has two daughters and a son.
Web links
| personal data | |
|---|---|
| SURNAME | Kirkendall, Ernest |
| BRIEF DESCRIPTION | American chemist and metallurgist |
| DATE OF BIRTH | July 6, 1914 |
| PLACE OF BIRTH | East Jordan , Michigan |
| DATE OF DEATH | August 22, 2005 |
| Place of death | Alexandria (Virginia) |