On Some Mesurements of Hardness of Metals by Micro-Hardness Tester
نویسندگان
چکیده
منابع مشابه
A New Grain Hardness Tester
.\ hardness tester, especially adapted for grain, was cor~structecl by modifying a commercial portable soft metal tester known as the Barcol Impressor. h preloaded stylus is forced into grain sections preparetl by rneans ot a microtome. The displacement of the stylus, nleasured by a dial micrometer, is used as a hardness index. This has been related to tlie l'ickers tlianlontl pyramid hardness ...
متن کاملInvestigation acute toxicity some of heavy metals at different water hardness
All aquatic organisms are directly or indirectly affected by the physical characteristics of their environment, especially the chemical composition of the water. The high concentration levels, damage tissues and interfere with the normal growth and proliferation. The aim of this research was to Investigation acute toxicity of ZnSO4 and CuCl2 to Gambusia holbrooki ...
متن کاملInvestigation acute toxicity some of the heavy metals at different water hardness
All aquatic organisms are directly or indirectly affected by the physical characteristics of their environment, especially the chemical composition of the water. The high concentration levels, damage tissues and interfere with the normal growth and proliferation. The aim of this research was to Investigation acute toxicity of ZnSO4 and CuCl2 to Gambusia holbrooki ...
متن کاملInvestigation acute toxicity some of heavy metals at different water hardness
All aquatic organisms are directly or indirectly affected by the physical characteristics of their environment, especially the chemical composition of the water. The high concentration levels, damage tissues and interfere with the normal growth and proliferation. The aim of this research was to Investigation acute toxicity of ZnSO4 and CuCl2 to Gambusia holbrooki ...
متن کاملInvestigation acute toxicity some of the heavy metals at different water hardness
All aquatic organisms are directly or indirectly affected by the physical characteristics of their environment, especially the chemical composition of the water. The high concentration levels, damage tissues and interfere with the normal growth and proliferation. The aim of this research was to Investigation acute toxicity of ZnSO4 and CuCl2 to Gambusia holbrooki ...
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ژورنال
عنوان ژورنال: The Journal of the Japan Institute of Metals
سال: 1949
ISSN: 0021-4876
DOI: 10.2320/jinstmet1937.13.3_29