The paper contains description of a new quantitative method of evaluation of material hardness. First the essence of cognition subject, concerned with the hardness notion, has been discussed. Next some characteristics...The paper contains description of a new quantitative method of evaluation of material hardness. First the essence of cognition subject, concerned with the hardness notion, has been discussed. Next some characteristics of exemplary existing evaluation methods have been presented. Then the attention was paid to the mistakes present in understanding//reasoning of the discussed problem. The revolutionary new method is given in the next part of the paper by presenting functional and parametric characteristics of the process of local deformation of a material. At the end, the justification – with the essential meaning for investigations of present and newer materials – to introduce one unified quantitative method of hardness evaluation, has been delivered.展开更多
Early in the 1980 s, Meyer dissolved appropriate amounts of CsCl and PrCl<sub>3</sub>·7H<sub>2</sub>O ina small amount of concentrated hydrochloric acid for getting CsPr<sub>2</su...Early in the 1980 s, Meyer dissolved appropriate amounts of CsCl and PrCl<sub>3</sub>·7H<sub>2</sub>O ina small amount of concentrated hydrochloric acid for getting CsPr<sub>2</sub>Cl<sub>7</sub>（hyd.）, and then thesample CsPr<sub>2</sub>Cl<sub>7</sub>（hyd.）was dehydrated by heating in HCl stream at high temperature. Thereaction equation is as follows:展开更多
文摘The paper contains description of a new quantitative method of evaluation of material hardness. First the essence of cognition subject, concerned with the hardness notion, has been discussed. Next some characteristics of exemplary existing evaluation methods have been presented. Then the attention was paid to the mistakes present in understanding//reasoning of the discussed problem. The revolutionary new method is given in the next part of the paper by presenting functional and parametric characteristics of the process of local deformation of a material. At the end, the justification – with the essential meaning for investigations of present and newer materials – to introduce one unified quantitative method of hardness evaluation, has been delivered.
基金Project supported by the National Natural Science Foundation of China.
文摘Early in the 1980 s, Meyer dissolved appropriate amounts of CsCl and PrCl<sub>3</sub>·7H<sub>2</sub>O ina small amount of concentrated hydrochloric acid for getting CsPr<sub>2</sub>Cl<sub>7</sub>（hyd.）, and then thesample CsPr<sub>2</sub>Cl<sub>7</sub>（hyd.）was dehydrated by heating in HCl stream at high temperature. Thereaction equation is as follows:
