Virtually all types of electrodes used in lithium-ion batteries expand and contract during cycling, which poses an engineering design challenge. Information provided by X-ray diffraction (XRD) about alterations the crystal structure active materials may be insufficient to inform these tasks. This is because it unclear how evolutions translate into measurable thickness changes at electrode or ce...

A new series of cobalt-based perovskite (Gd0.6Sr0.4)0.99Fe1-xCoxO3-? (GSFC-x, x = 0.00, 0.05, 0.10, 0.15, 0.20 and 0.25) cathodes to aid in the development intermediate temperature solid oxide fuel cells are reported. All perovskites showed coexistence cubic orthorhombic phases. To determine their suitability, thermal properties dependence on cobalt content were investigated via dilatometry, th...

Thermal expansion of materials is fundamental practical relevance and arises from an interplay several material properties. For nanocrystalline materials, accurate measurements thermal based on high-precision reference dilatometry allow inferring phenomena taking place at internal interfaces such as vacancy annihilation grain boundaries. Here we report obtained for a severely deformed 316L aust...

Adsorption-induced deformation of a monolithic, synthetic carbon of clearly distinguishable micro- and mesoporosity was analyzed by in situ dilatometry with N2 (77 K), Ar (77 K), CO2 (273 K), and H2O (298 K). A characteristic nonmonotonic shape of the strain isotherm showing contraction of the sample at initial micropore adsorption followed by expansion toward completion of micropore filling wa...

Abstract This study presents the 51 mixtures of ceramic clays characterized by using XRF, XRD, granulometry, and dilatometry analyses. After firing in a 1000–1250 °C range, water absorption (WA) according to EN standards boiling water, under vacuum, 24 h soaking is determined. The results indicated that there was high statistically significant correlation between standard methods, but testing v...

High-carbon steels have been used to high-strength steel wire and strands for prestressing concrete. The necessity of levels at increasingly larger diameters rods is a technological challenge. Two with without Nb were obtained in mill, submitted detailed microstructural (previous austenitic grain size, pearlite interlamellar spacing colony size) mechanical characterization through tensile tests...

Enhancing lithium-ion batteries (LiBs) cycle life is essential from both economic and sustainability perspective. In addition, to make their application in electric vehicles (EVs) even more feasible, the energy power density have be enhanced as well. Improvement electrical conductivity of battery electrodes can lead an augmentation this achieved by using highly conductive carbon nanomaterials e...

Lanthanum phosphate, due to its interesting thermal and mechanical properties is a widely studied material for refractory applications. Sintering processes have already been proposed densify this drive microstructure. Inspired by recent progress on low temperature sintering, we investigate Spark Plasma (LowT-SPS) using hydrated precursor. First, lanthanum phosphate behaviour was TGA/DTA XRD ana...