Biodegradable composites based on lignocellulosic fibers—An overview

There are numerous potential applications for superconducting tapes based on YBa(2)Cu(3)O(7-x) (YBCO) films coated onto metallic substrates. A long-established goal of more than 15 years has been to understand the magnetic-flux pinning mechanisms that allow films to maintain high current densities out to high magnetic fields. In fact, films carry one to two orders of magnitude higher current densities than any other form of the material. For this reason, the idea of further improving pinning has received little attention. Now that commercialization of YBCO-tape conductors is much closer, an important goal for both better performance and lower fabrication costs is to achieve enhanced pinning in a practical way. In this work, we demonstrate a simple and industrially scaleable route that yields a 1.5-5-fold improvement in the in-magnetic-field current densities of conductors that are already of high quality.

Strongly enhanced current densities in superconducting coated conductors of YBa2Cu3O7-x + BaZrO3

Sisal fibre and its composites: a review of recent developments

https://cyberleninka.org/article/n/309915.pdf

A critical review on solvent extraction of rare earths from aqueous solutions

The Binary Rare Earth Oxides.

Dehydroxylation and high temperature phase formation in sol-gel boehmite characterized by Fourier transform infrared spectroscopy

Proprietes mecaniques, resistance aux chocs et rupture de polyester renforce de fibres de sisal, ananas, banane et coco

Impact properties of natural fibre composites

Work of fracture (WOF) of unidirectionally aligned sisal-glass hybrid laminates, especially glass core — sisal shell (SGS) laminates, have been studied using flat charpy test. Keeping the volume fraction of sisal at about 0.4, the WOF of SGS laminates linearly increased from 80.2 to 228 kJ m−2 by varying the volume fraction of glass at the core (V
g core) from 0 to 0.2. However, further enhancement in WOF has been observed when the glass core is shifted from the midline towards the tensile side of the laminate with respect to impact. The specific work of fracture (165 kJ m−2) of SGS laminate atV
g core 0.2 is identical to that of glass-reinforced polyester composites containing 0.6 volume fraction of glass. Addition of glass facings to SGS laminates increased its WOF by 20 to 30 kJ m−2 when the volume fraction of glass in the facings (V
g facings) was about 0.04. The increase in resistance to compressive yielding that occurs by placing glass facings above a critical size (V
g facings ≃ 0.04 in the present case) adversely affected the WOF of SGS hybrid laminates.

Impact properties of sisal-glass hybrid laminates

A review of the literature on liquid-liquid extraction processes for the separation and purification of rare earths is presented. This review also discusses computer simulation programs used for the design and optimization of processes for the separation of rare earths. The lacunae in the computer simulation programs are highlighted and suggestions for future work are given.

A. D. Damodaran

Papers

Dehydroxylation and high temperature phase formation in sol-gel boehmite characterized by Fourier transform infrared spectroscopy

Impact properties of natural fibre composites

Impact properties of sisal-glass hybrid laminates

Liquid-Liquid Extraction Processes for the Separation and Purification of Rare Earths

FTIR as a tool to study high-temperature phase formation in sol-gel aluminium titanate