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keynote speakers

 

Keynote Speaker I

Prof. Tjokorda Gde Tirta Nindhia
Udayana University, Indonesia

 

Tjokorda Gde Tirta Nindhia received Doctor Degree from Gadjah Mada University (UGM) Yogyakarta, Indonesia on August 2003, with major field of study was Material Engineering. He participated in various international research collaborations such as with Muroran Institute of Technology Japan (2004), Toyohashi University of Technology Japan (2006), Leoben Mining University Austria (2008-2009), Technical University of Vienna Austria (2010), Institute Chemical technology of Prague Czech Republic (2012-now) and very recently with Michigan State University (MSU) and University of Hawaii in the USA under Fulbright Scholarship. His current job is as Full Professor in the field of Material Engineering at Engineering Faculty, Udayana University, Jimbaran, Bali, Indonesia. His research interest covers subjects such as, Biomedical Engineering, biosensor, biomaterial, waste recycle, failure analyses, advance ceramic, metallurgy, composite, renewable energy, and environmental friendly manufacturing.

Speech Title: Developing Fracture Toughness Mode II (KIIC) Testing for advance ceramic

Abstract: There are three methods of applying a force to enable a crack to propagate: Opening mode(Mide I) that is a tensile stress normal to the plane of the crack, Sliding mode (Mode II) that is a shear stress acting parallel to the plane of the crack and perpendicular to the crack front, and Tearing mode (Mode III) which is a shear stress acting parallel to the plane of the crack and parallel to the crack front. The fracture toughness mode II ( KIIC) measurement is introduced in this research. The material for the experiment was silicon nitride (Si3N4). An Asymmetric bending test was suggested to for in plane stress to occur. In fracture toughness mode I (KIC), the sharp notch can be used for measurement. Sharp notch cannot be used for KIIC because notch is not a crack, the R-curve for short and long crack is not the same and roughness of microstructure will affect the result of measurement. In this research the crack was created by using opposite roller precracking. The result for KIIC is 5.0 ± 0.27 MPam1/2, meanwhile KIC is 5.5 ± 0.20 MPam1/2

 

Keynote Speaker II

Prof. Wenzhi Fu

Jilin University, China

 

Wenzhi Fu,Professor of Jilin University, doctoral tutor. Engaged in teaching and scientific research for more than 30 years, mainly engaged in multi-point forming technology, flexible stretch forming technology, flexible rolling technology and flexible coil technology research.
In recent years, he has undertaken or participated in many national, provincial and ministerial projects, and actively undertakes or participates in national key projects, such as the flexible stretching and forming equipment for a certain type of aircraft skin and the multi-point forming equipment for the outer deck of a large-scale surface warship. The research and development project also participated in the development project of the forming equipment for the exterior decoration of Korean special-shaped buildings as the main force, and solved the problem of flexible forming of the three-dimensional curved parts of large-scale plates in several national key projects. He has published more than 100 academic papers, including 5 Sci searches, 25 EI searches, and 15 invention patents such as “multi-point forming press”. “Key technology and equipment for multi-point forming of large-scale irregular space surface parts and its application” won the second prize of National Science and Technology Progress Award in 2009; “Plate Multi-Point Forming Device” won the 2010 China Patent Gold Award; “Flexible Stretching of Large Surfaces” The forming principle, key technologies and equipment won the first prize of the 2012 Jilin Science and Technology Invention. In 2010, it was rated as one of the top 100 outstanding science and technology workers in Changchun City. In 2012, it was awarded the 12th batch of young and middle-aged professional and technical talents with outstanding contributions in Jilin Province.

Invited Speaker

Prof. Arcady Zhukov
University of Basque Country, Spain

 

Arcady Zhukov is an Ikerbasque Research professor at the University of Basque Country, Spain. He was graduated in 1980 from the Moscow Steel and Alloys Institute (presently National University of Science and Technology). In 1988 he received Ph.D. degree from the Institute of Solid State Physics of the Russian Academy of Science, in 2010- Doctor of Science (habilitation) in Moscow State “Lomonosov” University. After postdoctoral stay at the Insituto de Magnetismo Aplicado, he obtained a Ramón y Cajal Fellowship and permanently joined the Ikerbasque in 2011. Fields of interest: amorphous and nanostructured magnetic materials, giant magnetoimpedance, giant magnetoresistance, sensors. He has published above 500 papers and 4 books (H-index = 43). Zhukov can be reached by email at arkadi.joukov@ehu.es.

Speech Title: Magnetically Soft Microwires for Technical Applications

Abstract: Soft magnetic wires can present magnetic properties suitable for industrial applications such as the giant magnetoimpedance (GMI) effect or fast single domain wall propagation related to the magnetic bistability [1-2]. These properties can be observed either in crystalline or in amorphous magnetic wires, but amorphous magnetic wires present several advantages, such as superior mechanical properties, the absence of the microstructure defects (grain boundaries, crystalline texture, dislocations, point defects,…) [1,2] and therefore long and precise post-processing is not required. For these reasons, amorphous wires have attracted considerable attention since the 70-s [1-3]. Glass-coated magnetic microwires prepared using the Taylor-Ulitovsky technique with thin metallic nucleus (typically with diameters from 0.5 to 50 mm) covered by flexible, insulating and biocompatible glass are quite demanded for a great number of applications [1-4]. Generally Co-rich microwires present excellent magnetic softness. However, Co belongs to critical raw materials. Therefore Fe-based microwires are preferable for large scale applications.  But as-prepared Fe-rich microwires present generally much lower GMI effect of than Co-rich microwires. Recently we observed that the magnetic softness and GMI ratio of Fe-rich microwires can be improved by stress-annealing [5]. In this work we observed a remarkable improvement of domain wall (DW) mobility, DW velocity, giant magnetoimpedance (GMI) effect and magnetic softening at appropriate stress-annealing conditions. Beneficial effect of stress-annealing on GMI effect and DW dynamics is attributed to the induced transverse magnetic anisotropy. Consequently, stress annealing enabled us to design the magnetic anisotropy distribution beneficial for optimization of either GMI effect or DW dynamics