Electro-deposition repairing concrete crack technique is of vital importance to prolong the service life structure in marine environment. In this paper, effect using seawater as an electrolyte was compared with ZnSO4 solutions, and mechanism electro-deposition cracks under environments investigated. Besides, various parameters such electrode materials, distances current density were studied sea...

Ferroelectric Bi4Ti3012 thin films have been grown on MgO ( 100) and MgO( 110) substrates by the pulsed laser deposition. X-ray diffraction studies show that the films on both substrates have preferential crystallographic orientation such that most of their c axes are close to the substrate normal direction. The film on MgO( 110) shows quadratic and hysteretic electro-optic characteristics with...

A laser opto-microactuator has been proposed as an Optical Micro-Electro-Mechanical-Systems (OMEMS). The rotational or twisting mechanisms of the microactuator have been discussed. For increasing the sensitivity of the actuator, the temperature difference between the front and rear blade surfaces of the actuator should be increased. Therefore, high absorption rates on the blade surface with las...

We present a detailed study of the interface morphology of an electro-deposited (ED) Ni/Cu bilayer film by using off-specular (diffuse) neutron reflectivity technique and Atomic Force Microscopy (AFM). The Ni/Cu bilayer has been electro-deposited on seed layers of Ti/Cu. These two seed layers were deposited by magnetron sputtering. The depth profile of density in the sample has been obtained fr...

Major joining methods of dental casting metal include brazing and laser welding. However, brazing cannot be applied for electroformed metals since heat treatment could affect the fit, and, therefore, laser welding is used for such metals. New methods of joining metals that do not impair the characteristics of electroformed metals should be developed. When new coating is performed on the surface...

When separating out those metals which are normally deposited on the cathode, a direct analysis of the amount deposited can be gotten by weighing the cathode before and after completion of electro-ultrafiltration, provided the current applied is above the deposition potential of the metal being removed. The collodion solutions can be prepared so as to give varying porosity according to the meth...

Recent results of CRIEPI’s pyro-process fuel cycle technology developments are reported. On the actinides deposition into liquid cadmium cathode, a series of experiments are conducted using a small scale electro-refiner of about a hundred grams actinides inventory. The suitable condition for codeposition of U and TRUs is investigated, by varying Pu/U ratio in the salt from ∞ to 1.7. The design ...

BACKGROUND Titanium is an inert metal that does not induce osteogenesis and has no antibacterial properties; it is proposed that hydroxyapatite coating can enhance its bioactivity, while zinc can contribute to antibacterial properties and improve osseointegration. AIMS A nano-sized hydroxyapatite-zinc coating was deposited on commercially pure titanium using an electro-chemical process, in or...

Purpose: This paper presents an efficient and reliable swarm intelligence-based approach, namely particle swarm optimization [PSO] technique, to optimize the hardness and the parameters that affect the hardness in the Ni-Diamond composite coatings. Design/methodology/approach: Particle swarm optimizers are inherently distributed algorithms, in which the solution for a problem emerges from the i...