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'Melting Points' in keywords Facet   section ZfN Section A  [X]
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1999 (1)
1993 (1)
1Author    V. A. Khokhlov, A. O. Kodintseva, E. S. FilatovRequires cookie*
 Title    "Anomalous" Thermal Conductivity of Crystalline Alkali Halides Close to Their Melting Point  
 Abstract    The thermal conductivity of crystalline alkali halides MX (M = Li, Na, K, Rb, and Cs; X = C1, Br, and I) close to their melting point has been measured by the steady-state coaxial-cylinders method. It was found to change anomalously as the temperature varied. A minimum of the thermal conduc-tivity at a characteristic temperature depends on the ionic composition of the crystal. This effect is ascribed to the formation of cooperating defects in the melting lattice. An expression relating the thermal conductivity of the ionic crystal near the melting point to the concentration of these defects is proposed. 
  Reference    Z. Naturforsch. 48a, 595—598 (1993); received April 25 1992 
  Published    1993 
  Keywords    Thermal conductivity, High temperature, Melting point, Ionic crystal, Alkali halide 
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 TEI-XML for    default:Reihe_A/48/ZNA-1993-48a-0595.pdf 
 Identifier    ZNA-1993-48a-0595 
 Volume    48 
2Author    E. Mikuli, A. Migdał-Mikuli, S. Wróbel, B. GradRequires cookie*
 Title    DSC Investigations of the Phase Transitions of [M(H 2 0) 6 ](N0 3 ) 2 , where M = Mn, Co, Ni, Cu and Zn  
 Abstract    The phase transitions of [M(H 2 0) 6 ](N0 3) 2 , where M = Mn 2+ , Co 2+ , Ni 2+ , Cu 2+ or Zn 2+ have been studied at 100 -400 K by DSC. Two phase transitions connected with a two-stage melting process have been found for these five compounds. For the compound with M = Co, besides the two melting points a solid-solid phase transition at 272 K has been found. 
  Reference    Z. Naturforsch. 54a, 595—598 (1999); received August 13 1999 
  Published    1999 
  Keywords    Hexaaquametal(II) nitrates, Phase Transitions, Melting Points, DSC Method 
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 TEI-XML for    default:Reihe_A/54/ZNA-1999-54a-0595.pdf 
 Identifier    ZNA-1999-54a-0595 
 Volume    54