Two internal friction (Q-1') and dielectric (D) peaks (P1, P2) for KDP, TGS and two Q-1 peaks for LNPP were investigated. P1 is attributed to fluctuations near a 2nd-order phase transition and P2 is related to domain walls (DWs). Taken into account the

Metallic foams are porous metals with large pore diameters and high porosities. Two common methods to fabricate metallic foams are foaming technique and low pressure Permeating. But neither of them can control the pore structures of metallic foams precise

The fatigue crack propagation, the plastic deformation at the crack tip and the acoustic emission behaviour for each cycle of crack growth were studied for a low strength steel A537 in both air and 3.5%NaC1 aqueous solution. The reduction in the speCimen

In recent years we systematically studied the action of P in cold rolled Fe-P alloys and discovered that P segregated preferentially along dislocation line and formed non-equilibrium structure, and also noticed that the non-equilibrium structure closely

A new high-strength high-toughness low alloy cold-working die steel 6CrNiMnSiMoV (GD Steel) has been developed. The amount of alloy elements in the steel is less than 5%, but the strength and toughness of the steel are superior to that of CrWMn and Cr12Mo

Fracture toughness and fatigue crack growth rate (FCGR) of 7075T73510 alloy have been studied. The difference in properties between (T-L) and (L-T) direction were analyzed.The results of plane stress fracture toughness indicate that fracture toughness is

The classification of phase transformation in ceramics is suggested. Thethermodynamic and kinetic criterions on the spinodal decomposition are introduced. Workson thermodynamics expression for the size effect on the martensitic transformation in ceramics

T Phase structures and dielectric properties of (1-x)PZN-xPT(0. 1 References | Related Articles | Metrics

The effeCt of cooling rate on transition from tetragonal (t) to monoclinic (m) structure in zirconia stabilized with Zmol% yttria is investigated by means of thermal expansion analysis and X-raydiffraction. Experimental results show that the volume fract

Gradient thin films are useful for space and air crafts and for industries working in high temperature. teChnologies. The techniques for the preparation of these films were developed quickly during the last years. Ion Beam Enhanced Depostition (IBED) is

Diamond-like carbon (DLC) films on the germanium disks have been prepared from C2H2 and Ar futures by RF-DC Plasma chemical vaPOur dePOsition. It was observed that the film properties vary with variations of different deposition parameters, among which t

Zeolites with less than 10A pores are desirable membrane materials, due to their crystallinity, resistance to high temperatUre, and chemical inertness. In this paper, the synthesis and some properties of.pure ZSM-5 zeolite membrane on the porous support b

A segment polyurethane elastomer (SPU) based on poly (hexamethylene carbonate) diol,PHMCD (with Mn=1380 gmol-1 hydroxy number 81 mg KOHg-1), poly (tetramethylent ether) glycol, PTMEG (Mn= 1040 gmol-1 , hydroxy number 108 mg KOH g-1), 4.4′-methylene his

Various polymer materials used in the medical field are required three essential factors: functional characteristic, mechanical property and biological compatibility. It is difficult to make medical products with these three essential factors by using si

C-V technology is an effective method of studing semiconductor interfaCe. This paper will rePort some interesting new results of C-V characteristics which are obtained from MIS tunnel junction with LB insulting films.The substrates used in present resear

Since 70s some scholars have tried to coat bioceramic on metal substrate by Plasma sPray, CVD and PVD etc. which is considered as one of most hopeful procedure combining bioceramie with metal.However,lin these processes the bioceramic coating has not goo