Bulletin of Materials Science

Volume 23, No.1, February 2000

CONTENTS


Cover:  SEM of DP nodule for MgAl alloy with Pb. For details, see p. 44.
 
Glasses  
   
Sol–gel processing of carbidic glasses                L M Manocha, E Yasuda, Y Tanabe, 
                                                                                      S Manocha and D Vashistha 


1

   
Collective modes in Ca70Mg30 glass               B Y Thakore, P N Gajjar and A R Jani

5

   
Molecular Magnets  
   
Synthesis and magnetic properties of one-dimensional metal oxalate networks as molecular-based magnets                                                          B P Singh and B Singh 

 
11

   
Polymers  
   
Dielectric properties of solution-grown-undoped and acrylic-acid-doped ethyl cellulose  
P K Khare and Sandeep K Jain  

17

   
An instrument for online measurement of structural orientation in translucent polymer sheets                               P K Palanisamy, D Mangaiyarkarasi and A Ramalingam

 
23

   
Characterization of plasticized PMMA–LiBF4 based solid polymer electrolytes   
                                                                                              S Rajendran and T Uma


27

   
Effect of ZrO2 on conductivity of PVC–PMMA–LiBF4–DBP polymer electrolytes
                                                                                              S Rajendran and T Uma


31

   
Metallic Materials  
   
Impact toughness of ternary Al–Zn–Mg alloys in as cast and homogenized condition measured in the temperature range 263–673 K                Harish Kundar, Krishna and 
                                                                                                                K Srinivasan



35

   
Role of diffusional coherency strain theory in the discontinuous precipitation in Mg–Al alloy                             K T Kashyap, C Ramachandra, M Sujatha and B Chatterji 

 
39

     
Composites  
   
Role of work hardening characteristics of matrix alloys in the strengthening of metal matrix composites                        K T Kashyap, C Ramachandra, C Dutta and B Chatterji

 
47

   
High Tc superconductors  
   
Electrochemical processing of high-Tc Bi(Pb)–Sr–Ca–CuO thin films  
  N V Desai, L A Ekal, D D Shivagan and S H Pawar 

51

   
Magnetic Materials   
   
57Fe-ion implantation in pulse laser deposited  La0·75Ca0·25MnO3 films: Conversion electron Mössbauer spectroscopy and X-ray diffraction studies 
                                                                                  U D Lanke and J Prabhjyot Pal



55

   
Clay Materials  
   
Dehydration transformation in Ca-montmorillonite            P Bala, B K Samantaray and
                                                                                                             S K Srivastava


61

   
Cements  
   
Effect of aluminium phosphate as admixture on oxychloride cement 
                                                                            M P S Chandrawat and R N Yadav


69

 

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