Ceramics and Glasses

Solution-combustion synthesis of Bi_1–xLn_xO_1×5 (Ln = Y and La–Yb) oxide ion conductors

Manjunath B Bellakki, A S Prakash, C Shivakumara, 
M S Hegde and A K Shukla

339

Impedance and a.c. conductivity studies on Ba(Nd_0×2Ti_0×6Nb_0×2)O₃ ceramic prepared through conventional and microwave sintering route

Syed Mahboob, G Prasad and G S Kumar

347

Acoustic study of nano-crystal embedded PbO–P₂O₅ glass

Sudip K Batabyal, A Paul, P Roychoudhury and C Basu

357

Spectroscopic investigations of Cu²⁺ in Li₂O–Na₂O–B₂O₃–Bi₂O₃ glasses

N Srinivasa Rao, M Purnima, Shashidhar Bale, K Siva Kumar and Syed Rahman

365

P K Thiruvikraman

B Eraiah

Composites

Studies on conductivity and dielectric properties of polyaniline–zinc sulphide composites

H C Pant, M K Patra, S C Negi, A Bhatia, S R Vadera and N Kumar

379

Microstructural studies on variation of defect parameters in Zr–Sn alloys and their transition with interchange of solvent and solute in Zr–Ti and Ti–Zr alloy systems by modified Rietveld method and Warren–Averbach method

J Ghosh, S K Chattopadhyay, A K Meikap and S K Chatterjee

385

Influence of nickel addition on magnetic and electro-mechanical behaviour of permalloys

Kiran Gupta, K K Raina and S K Sinha

391

Dielectric parameters and a.c. conductivity of pure and doped poly (methyl methacrylate) films at microwave frequencies

Anju Tanwar, K K Gupta, P J Singh and Y K Vijay

397

Gas sensing properties of Cu and Cr activated BST thick films

G H Jain and L A Patil

403

Thermally stimulated discharge conductivity in polymer composite thin films

V S Sangawar, P S Chikhalikar, R J Dhokne, 
A U Ubale and S D Meshram

413

Potentiometric study of polyaniline film synthesized with various dopants and composite-dopant: A comparative study

P D Gaikwad, D J Shirale, V K Gade, P A Savale, K P Kakde, 
H J Kharat and M D Shirsat