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Otimização do processo de secagem de concretos refratários
(Universidade Federal de São Carlos, 2020-08-11)
The drying step of hydraulic-bonded refractory castables is usually carried using conservative and long heating schedules, in order to preserve the microstructure of dense ceramic linings and inhibit explosive spalling ...
Aspectos termodinâmicos e cinéticos do uso de plugues porosos para a remoção de partículas cerâmicas por bolhas inteligentes
(Universidade Federal de São Carlos, 2021-04-19)
Non-metallic inclusions can spoil the mechanical properties of the steel depending on their composition, geometry, size and distribution. In this context, “inclusion engineering” is a rising area in steelmaking industry ...
Obtenção do sistema nanoestruturado livre de chumbo (Na0,5Bi0,5)0,94Ba0,06TiO3 (NBT-BT6) via rotas químicas
(Universidade Federal de São Carlos, 2020-09-16)
Perovskites based on sodium bismuth titanate (Na0.5Bi0.5TiO3) are
promising candidates for replacing some ceramic materials based on lead due
to piezoelectric properties. The solid solution 0.94(Na0.5Bi0.5)TiO3-0.06BaT ...
Relaxação estrutural de vidros metassilicato de chumbo e dissilicato de lítio
(Universidade Federal de São Carlos, 2021-02-25)
Glasses are thermodynamically unstable and spontaneously relax towards the supercooled liquid state. The relaxation time varies from seconds at temperatures above the glass transition to geological times at room temperature. ...
Adição de resíduo de casca de eucalipto em matriz de pvc com diferentes concentrações e tamanhos: caracterização do resíduo e do compósito
(Universidade Federal de São Carlos, 2020-05-27)
Brazil is the largest producer of short fiber cellulose worldwide, mainly obtained from eucalyptus, which is a fast-growing tree. Due to this high production of cellulose, large amounts of eucalyptus bark residues (EBR) ...
Avaliação dos modelos numéricos para a simulação da secagem de concretos refratários
(Universidade Federal de São Carlos, 2021-02-25)
The drying of hydraulic bonded monolithic refractories is the slowest stage of their application process. Problems related to the control of such a procedure result in cracks, spalling and even, in extreme cases, explosions ...
Eletrofiação de nanofibras de KBiFe2O5 com potencial aplicação em células solares
(Universidade Federal de São Carlos, 2020-07-15)
Today, ferroelectric semiconductors with perovskite type structure are widely studied due to the possibility of obtaining voltages higher than their band gap and to their contribution to the charge carriers’ separation due ...
Dispersão da lignina Kraft em PBSA e suas interações: efeito da concentração e condições de processamento
(Universidade Federal de São Carlos, 2020-10-29)
Serious environmental issues have been caused by the massive consumption of plastic products. One of many strategies to reduce the environmental impacts is the development of bio-based and biodegradable polymeric materials. ...
Caracterização eletroquímica do eletrólito sólido NASICON Li1,5Al0,5Ge1,5(PO4)3 (LAGP)
(Universidade Federal de São Carlos, 2021-08-17)
Solutions to the environmental and social challenges of postmodern society converge on a common point: sustainability. Doing more with less and using environmentally friendly materials is imperative. Energy storage is ...
Desenvolvimento de sachês biodegradáveis à base de amido para liberação do micronutriente zinco
(Universidade Federal de São Carlos, 2020-08-31)
Due to the great importance of agriculture in human activities and the economy,
studies have been directed in order to increase the efficiency of agricultural
production. This project aimed to increase zinc oxide (ZnO) ...