in the present research, friction stir welding (fsw) process was used for butt joining of pure copper plate to 316l stainless steel plate. mechanical properties and microstructural characteristics of the joint were evaluated by microhardness and tensile tests as well as optical and scanning electron microscope (sem). it was found that microstructure of the weld nugget (wn) has fine grains where...

An X-ray diffraction line will broaden considerably when steels change into martensitic structure on quenching. The results presented in this paper show that X-ray diffraction technique can be employed for a rapid and nondestructive measurement of hardness of hardened steel. Measurement on various quenched and tempered steels showed that the breadth of its diffraction peak increased with increa...

Abstract NASICON-type solid electrolytes are promising materials for novel solid-state-batteries aiming toward high energy densities. Na 1+ x Hf 2 Si 2.3 P 0.7 O 10.85+0.5 with varying sodium content as well Sc- or Mg-doped and undoped Zr 3- 12 were synthesized by solution-assisted solid-state reaction. Microstructural mechanical characteristics conductivities investigated. The electrochemical ...

Myofascial pain, presented as myofascial trigger points (MTrPs)-related pain, is a common, chronic disease involving skeletal muscle, but its underlying mechanisms have been poorly understood. Previous studies have revealed that chronic pain can induce microstructural abnormalities in the cerebral gray matter. However, it remains unclear whether the brain gray matters of patients with chronic M...

in this study, the elemental powders of aluminum and copper were initially subjected to mechanical alloying using an attrition ball mill under argon atmosphere to produce an al-4.5 wt% cu powder alloy. the wc nanoparticles were then added to the powder alloy and milled in a planetary ball mill to explore the role of the wc nanoparticles on the mechanical properties of the fabricated composite p...

The application of cementicios materials is widely extended fundamentally for its use as structural elements. In this sense, it presents some advantages respect to other materials, in spite of the different physical and chemical attacks that limit its durability. This durability is a function of its porous structure, because the existence of pores facilitates the destructive agents which attack...

Cancellous bone microstructure is an important determinant of the mechanical integrity of vertebrae. The numerous microstructural parameters that have been studied extensively are generally represented as a single value obtained as an average over a sample. The range of the intra-sample variability of cancellous microstructure and its effect on the mechanical properties of bone are less well-un...