 Wysłany: Nie 22:02, 03 Kwi 2011 Temat postu: HPLC method for the determination in the eyes of P |
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| HPLC method for the determination in the eyes of Paul Ⅱ Capsule chrysophanol content
Of course, some metals are not brittle , brittle brittle phenomenon is a cold , low temperature embrittlement Why would the situation? explained below , the slip strength of materials varies with the temperature , the higher the temperature , Slip the lower strength , lower the temperature, the higher the slip intensity , while the breaking strength of the material is Sor is not temperature dependent ,GHD glätteisen, with the temperature , O'S , and Sor there will be a point of intersection , the intersection is Tk, Tk at the intersection The right , when material force is to yield and then fracture occurs , then the damage is plastic fracture ; in Tk to the left , material force , the material is also too late to place yield , it has been broken , when the damage is Brittle fracture. Critical temperature Tk is brittle , shown in Figure 4. For the single crystal , this kind of explanation is appropriate , for the polycrystalline speaking , the situation is basically true, but plans to be more complex. TK Figure 4TK critical temperature for the brittle |
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