Magnetic Materials and Semiconductors. Core Loss Reduction of Powder Cores with Fe-Si-Al Atomized Powders.

Advances in Core Loss Calculations for Magnetic Materials

بررسی خواص سایشی آلیاژهای Al-(5-13)Si-Fe

در این تحقیق تاثیر آهن (wt%2-2/0) بر خواص سایشی آلیاژهای Al-(5-13)Si مورد بررسی قرار گرفته است. آزمایش‌های سایش در دمای محیط، بار N45، سرعت m/s13/0 و مسافت m1000 به روش پین روی دیسک انجام شدند. بر اساس نتایج به دست آمده، در غلظت‌های آهن کمتر از غلظت بحرانی (wt%2/1 در این تحقیق)، افزایش سیلیسیم موجب شکل‌گیری صفحات ظربف AlFeSi در نواحی بین دندریتی شده و بواسطه افزایش سختی زمینه و کاهش سیلان پلاست...

Thermal Stability, Microstructure and Mechanical Properties of Nanostructured Al-Ni-Mm-X (X=Cu and Fe) Alloys Hot-Extruded from Gas-Atomized Powders

Dept. of Nano System Engineering, Pusan National University, 50 Cheonghak Samrangjin-eup, Miryang, Kyungnam, Korea Advanced Materials Processing and Analysis Center (AMPAC), Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, FL 32816-2455, USA Division of Advanced Materials Engineering, Kongju National University, 275, Budae-dong, Cheonan City...

Modification of Primary Si Crystals and Fe-rich Intermetallics in LM28 Al Alloy Fabricated Through Thixoforming

In the present research, thixoforming route was carried out in order to enhance the microstructural features of LM28 piston alloy. Typical microstructure of this alloy was composed of coarse, polygonal primary silicon particles, eutectic matrix and intermetallic phases. Thermal analysis was carried out to study the solidification path of the base alloy and determine the major arrest temperature...

A Comparative Study of Insulators on Magnetic Properties of Sendust Based Nanocomposite Powder Cores

In this study, Sendust (Fe85Si9.6Al5.4) nanostructure alloy was prepared bymechanical alloying and was characterized by X-ray diffraction. In addition, the alloy’smorphology and its distribution particle size were investigated by scanning electronmicroscopy method. The alloyed powders were insulated with 4wt% of three differentinsulating materials including polyvinyl alc...