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"Contents : - Recent Developments in Weldability Testing for Advanced Materials - Reactive Air Brazing for High-Temperature Electrochemical Applications - The Effect of High-Temperature Dual Reducing/Oxidizing Gas Conditions on Silver-Based Filler Metal Compositions - Development of Hyper-Interfacial Bonding Process of Ultra-Fine Grained High Strength Steels - Important Lessons Learnt in the Design of Consumables for Welding High Strength Steels - The Development of a Compressive Residual Stress Around a Structural Steel Weld by Means of Phase Transformations - Micro Electron Beam Welding in an SEM - Nd-YAG Laser Micro Welding of Ti-Ni Type Shape Memory Alloy Wire and it’s Corrosion Resistance - The Effect of Surface Tension on Microjoining - Interfacial Reaction Between Sn-8Zn-3Bi and Ni/Au Plating - Room Temperature Lead-Free Soldering of Microelectronic Components using a Local Heat Source - Study for Increasing in the Melting Temperature of Micro Joint using Sn-Ag Solder and Au/Ni-Co Plating - Microstructural Characterization of Eutectic Sn-Au Solder as a Lead-free Solution - Effects of Melt-Pool Geometry and Substrate Orientation on Microstructure Development in Laser Surface Melting of Single Crystal Superalloys - Weldability of Ni-Base Single Crystal Superalloys - Microstructure of Laser Deposited Superalloy RENE 80 on GTD-111 - Designing Sealing Glasses for Solid Oxide Fuel Cells - Glass-Ceramics for Sealing Solid Oxide Fuel Cells - Compressive Mica Seals for Solid Oxide Fuel Cells - High Temperature Seals for Solid Oxide Fuel Cells (SOFC) - A New Sealing Concept for Planar Solid Oxide Fuel Cells - Effects of Surface Microstructure of Copper on Surface Energy after Pulse Nd: YAG Laser Irradiation - Damage Control of Soldering Iron Tip for Lead-Free Solder - Resistance Microwelding of Fine Nickel Wires - Novel Bonding Process Using Ag Nanoparticles - Influence of Bonding Conditions - - YAG Laser and TIG Arc Hybrid Welding Phenomena - Effect of Joint Design on Mechanical Properties of AL7075 Weldment - Properties of Weld Joints of Bake-Hardening Steel for Automobile - Lead-Free Soldering of a Hybrid Microcircuit Package Assembly: A University- Industry Design Project Collaboration - Effect of Ni Addition on Interfacial Reaction between Sn-Cu Solder and Cu Base Metal - Effect of Au Coating Thickness on Interfacial Reaction and Joint Strength of Sn- Ag Based Solders Reflowed on Electroless Ni-P/Au Plated Cu land "

"This book investigates the effect of sintering temperature on willemite based glass-ceramic doped with different content of Er2O3. It is the first to report research on producing willemite by using waste materials and using trivalent erbium (Er3+) as a dopant. This book provides a survey of the literature on glass and glass-ceramic, while comprehensive experiments and analysis have been performed on the material used. "

"Transisi global menuju energi hijau dan berkelanjutan memerlukan metode produksi hidrogen yang efisien dan ramah lingkungan. Sel Elektrolisis Oksida Padat (SOEC) memiliki potensi besar dalam produksi hidrogen hijau karena efisiensinya yang tinggi dengan menggabungkan panas dan energi listrik. Penelitian ini bertujuan untuk mengkaji karakteristik SOEC dengan susunan LSCF/GDC | YSZ | Ni-YSZ yang difabrikasi pada variasi suhu sintering guna meningkatkan kinerja dan umur pakai SOEC. Variasi suhu sintering yang diteliti adalah 800°C, 900°C, dan 1000°C, dengan karakteristik struktural dan kimia diamati menggunakan SEM-EDX. Hasil penelitian menunjukkan bahwa suhu sintering 800°C menghasilkan struktur porous interlayer dengan ketebalan 110-117μm. Pada suhu 900°C, ketebalan berkurang menjadi 92-100 μm, dan pada suhu 1000°C, ketebalan lebih lanjut berkurang menjadi 75-90 μm. Degradasi terjadi pada porous interlayer, ditandai dengan persebaran Sr yang cukup tinggi pada interlayer di suhu 800°C. Nilai at% (atomic percentage) Sr tercatat sebesar 3.3% pada 800°C, menurun menjadi 1.3% pada 900°C, dan kembali naik menjadi 2.2% pada 1000°C. Nilai yang tidak konsisten ini disebabkan oleh fenomena overlapping pada beberapa elemen penyusun sel, yang mempengaruhi pembacaan persebaran Sr. Penelitian ini juga menjelaskan sintesis komponen SOEC berbasis solid state reaction dan menekankan pentingnya kontrol mekanisme fabrikasi. Penelitian ini memberikan wawasan berharga tentang perilaku material pada kondisi suhu tinggi dan menjadi panduan penting bagi kemajuan di masa depan dalam produksi hidrogen yang berkelanjutan.

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The global transition towards green and sustainable energy requires efficient and environmentally friendly methods for hydrogen production. Solid Oxide Electrolysis Cells (SOEC) have significant potential for green hydrogen production due to their high efficiency by combining heat and electrical energy. This study aims to examine the characteristics of SOEC with an LSCF/GDC | YSZ | Ni-YSZ configuration fabricated at various sintering temperatures to enhance the performance and longevity of SOEC. The sintering temperatures investigated were 800°C, 900°C, and 1000°C, with structural and chemical characteristics observed using SEM-EDX. The results showed that a sintering temperature of 800°C produced a porous interlayer structure with a thickness of 110-117μm. At 900°C, the thickness decreased to 92-100 μm, and at 1000°C, the thickness further reduced to 75-90 μm. Degradation occurred in the porous interlayer, marked by a high distribution of Sr in the interlayer at 800°C. The atomic percentage (at%) of Sr was recorded at 3.3% at 800°C, decreased to 1.3% at 900°C, and increased again to 2.2% at 1000°C. This inconsistency was due to the overlapping phenomenon of some cell elements, affecting the Sr distribution readings. This study also explains the synthesis of SOEC components based on solid-state reaction and emphasizes the importance of fabrication mechanism control. The research provides valuable insights into material behavior at high temperatures and serves as an important guide for future advancements in sustainable hydrogen production."