Editions specialesSrpska kraljevska akademija, 1978 |
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Страница 7
... grain boundary and surface diffusion mechanisms . Also , owing to the large experimental errors inherent in the measurements of neck dia- meters this method is not more helpful than one based on direct determina- tion of the exponent n ...
... grain boundary and surface diffusion mechanisms . Also , owing to the large experimental errors inherent in the measurements of neck dia- meters this method is not more helpful than one based on direct determina- tion of the exponent n ...
Страница 10
where b is the thickness of the grain boundary and Do the coefficient of self - diffusion in the grain boundary . The expressions for shrinkage of spherical pores differ from ( 10 ) , ( 11 ) , and ( 12 ) by numerical factors only . The ...
where b is the thickness of the grain boundary and Do the coefficient of self - diffusion in the grain boundary . The expressions for shrinkage of spherical pores differ from ( 10 ) , ( 11 ) , and ( 12 ) by numerical factors only . The ...
Страница 21
... grain boundary . This condition can be expressed by a simple equation vi ' = p vi ts vi , i / 1 , 2 ( 35 ) where p is the probability that a given spherical pore or a segment of a cylind- rical one is located at a grain boundary , v ...
... grain boundary . This condition can be expressed by a simple equation vi ' = p vi ts vi , i / 1 , 2 ( 35 ) where p is the probability that a given spherical pore or a segment of a cylind- rical one is located at a grain boundary , v ...