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1-5 of 5
Wojciech Kasprzak
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Journal Articles
Using Induction Melting to Make Lithium-Ion Battery Material
Available to Purchase
Journal: AM&P Technical Articles
AM&P Technical Articles (2017) 175 (8): 16–22.
Published: 01 November 2017
Abstract
View articletitled, Using Induction Melting to Make Lithium-Ion Battery Material
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for article titled, Using Induction Melting to Make Lithium-Ion Battery Material
Lithium-ion batteries are an important enabling technology for electric vehicles. This article reports on a study in which an induction melting process was evaluated to produce LiFePO 4 (LFP) ingots as well as granules from low-cost precursors. The melt casting process can provide the benefits of utilizing various precursors, rapid reaction kinetics, homogeneous liquid composition, and scale-up readiness. More importantly, this process also offers the possibility of lower-cost battery materials at a similar or better performance level as compared to solid state methods. If successful, melt synthesis of battery cathode material could offer a novel application of the conventional casting process.
Journal Articles
Optimizing Process Parameters for Aluminum-Silicon High Pressure Die Cast Powertrains
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Journal: AM&P Technical Articles
AM&P Technical Articles (2017) 175 (4): 17–24.
Published: 01 May 2017
Abstract
View articletitled, Optimizing Process Parameters for Aluminum-Silicon High Pressure Die Cast Powertrains
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for article titled, Optimizing Process Parameters for Aluminum-Silicon High Pressure Die Cast Powertrains
Aluminum components with refined microstructures produced by high pressure die casting enable manufacturers to gain energy savings via shorter production cycles—if casting and tempering parameters are optimized. This article reports on research results indicating it is possible to increase hardness of hypereutectic Al-Si alloys by optimizing the water quenching rate and duration of room temperature hold, and producing castings with finer microstructures.
Journal Articles
Developing Strong Core Technology for High Pressure Die Casting
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Journal: AM&P Technical Articles
AM&P Technical Articles (2017) 175 (1): 18–20.
Published: 01 January 2017
Abstract
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for article titled, Developing Strong Core Technology for High Pressure Die Casting
This article addresses work to develop core technology for high pressure die casting in order to enable high volume and low-cost manufacturing of lightweight automotive components with complex hollow structural shapes. Although experimental verification of the concept using a part with simplified geometry looks promising, the technique requires further testing using commercial components with internal cavities of complex geometry.
Journal Articles
High-Temperature Aluminum Alloys for Automotive Powertrains
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Journal: AM&P Technical Articles
AM&P Technical Articles (2016) 174 (3): 16–20.
Published: 01 March 2016
Abstract
View articletitled, High-Temperature Aluminum Alloys for Automotive Powertrains
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for article titled, High-Temperature Aluminum Alloys for Automotive Powertrains
This article describes research aimed at developing cast aluminum alloys with the necessary high-temperature tensile and fatigue strengths to withstand the modern automotive engine environment. Micro-additions of Ti, V, and Zr were added to an Al-7Si-1Cu-0.5Mg cast alloy, leading to the formation of phases that increase stability at high temperatures, positively affecting alloy strength.
Proceedings Papers
HT2011, Heat Treating 2011: Proceedings from the 26th Heat Treating Society Conference, 189-198, October 31–November 2, 2011,
Abstract
View Papertitled, Dissolution of Second Phase Particles in 319-Type Aluminum Alloy
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for content titled, Dissolution of Second Phase Particles in 319-Type Aluminum Alloy
The dissolution of second phase particles in a 319-type (Al-Si- Cu-Mg) aluminum casting alloy has been quantified by image analysis of metallographic specimens as well as an electron microprobe technique. The initial phase content of the as-cast material, and the change in volume fraction of each phase following solution treatment for various times at 480°C and 505°C, was determined by analysis of particles observed by backscattered electron microscopy. Furthermore, the change in dendritic alloy content during solution treatment was measured using electron microprobe analysis in order to estimate the relative volume fraction of second phase particles dissolved. Finally, a non-isothermal dissolution model was used to predict the dissolution behaviour during solution treatment and comparisons are made between the model predictions and experimental measurements.
