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Comparison of Physical Properties of Gray and Ductile Iron Castings at Room Temperature

Fonderie Saguenay are a jobbing shop specializing in producing components in materials such as gray iron and ductile iron. The following table has been compiled to assist with the selection of the ideal grade of cast iron for your castings.

From Fusium 7 Dec 2010

An Introduction to High Performance Superconductors

Superconductors are a class of compounds which conduct electricity without resistance and are impermeable to magnetic flux below a critical temperature.

By Dr. Simon R. Hall 1 Dec 2010

Analysis of High-Collapse Grade P110 Coupling Failures

In recent years, environmentally-assisted cracking has caused failures of many Grade P110 couplings during fracturing operations, causing enormous economic loss to the oil and gas industry. Examples of such failures are reviewed and the contributing factors are discussed.

From Element Materials Technology 24 Nov 2010

Nanostructured Metallic Alloys - Materials for the Future

Recent advancements in the field of nano-technology focused attention on developing materials with new and useful characteristics.

By Professor Emily M. Hunt 23 Nov 2010

Photoluminescence Studies of Epitaxial ZnO Thin Films on Si (100) Substrates by Pulsed Laser Deposition

In this paper, we have focused our attention on the photoluminescence studies of ZnO films at different deposition parameters. The films show the luminescent properties in UV, green-yellow, orange, and red regions.

22 Nov 2010

Sintering of Silicon Nitride Nano-Powders Prepared by High-Energy Mechanical Milling

In this paper, effect of metallic aluminum as a grinding additive on high-energy milling and sintering is investigated. Effect of sintering additives on sintering is also investigated in conjunction with the superplasticity.

22 Nov 2010

Design-Synthesis-Evaluation of CrN-Based Nanocomposite Hard Coating

In this study, the microstructural design, synthesis and evaluation for the quaternary Cr-Al-Si-N coatings were investigated. Also, the overall comparisons among CrN, Cr-Al-N, Cr-Si-N, and Cr-Al-Si-N coatings were conducted in terms of microstructure and mechanical properties of these coatings.

22 Nov 2010

Abrasive Grain Efficiency and Surface Roughness for Machining Ceramics by Newly Developed Cup-Type Diamond-Grinding-Wheels

In this work, cup-type newly developed diamond-grinding-wheels with various amounts of abrasive grain on wheel surfaces are used to grind sapphire. The effects of abrasive grains and surface roughness of ground sample are evaluated.

19 Nov 2010

High Young's Modulus With High Damping Capacity of Porous Alumina

In this paper, a method of producing high Young's modulus with high internal friction coefficient using porous ceramics is reported by clarifying the relationship between principal properties (Youngfs modulus and damping capacity) and sintering mechanisms.

19 Nov 2010

Fabrication of Chemical Mechanical Polishing (CMP) Pad Dresser by Using Chemical Reaction Between Diamond Abrasive Grains and Titanium Matrix

CMP pad was fabricated by a pulsed electric current sintering method. The attachment of diamond grains after sintering was investigated to obtain a minimum requirement of TiC layer for a stronger anchoring effect.

19 Nov 2010