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Análise de técnicas para medir a espessura de filme de óxido de alumínio obtido por anodização
(Universidade Tecnológica Federal do ParanáGuarapuavaBrasilEngenharia MecânicaUTFPR, 2019-07-12)
Various applications of aluminum have required their elements to work in severe conditions of friction, wear and corrosion, such as in the use of frames, profiles, household articles, automobile industry, aeronautical ...
Labmade metallizer: Deposition of aluminum film on glass substrate and subsequent anodization to obtain aluminum oxideMetalizadora construída em laboratório: Deposição de filme de alumínio sobre substrato de vidro e posterior anodização para obtenção de óxido de alumínio
(2021-01-01)
In this work, the assembly of a low-cost metallizer is presented, based on physical vapor deposition, to obtain metallic aluminum film d eposited o ver a g lass s ubstrate. L ater, t he A l fi lm is an odized an d converted ...
Novel supports for nickel-based catalysts for the partial oxidation of methane
(Elsevier, 2010)
Zirconia-supported nickel catalysts with different amounts of aluminum (Al/Zr = 0.2, 1 and 2) were studied in this work in order to find alternative supports for nickel-based catalysts for the partial oxidation of methane. ...
Grinding behavior of VP50IM steel using green and black silicon carbide compared to aluminum oxide wheel under different feed rates
(2021-01-01)
Technological advances and the development of new products make it increasingly necessary to seek to improve production means to meet the growing demand for equipment and consumer goods. In this sense, the molds enable the ...
Estudo comaprativo da resistência da união esmalt/resina/metal. Efeito de resinas de fixação, artifícios retentivos e ligas metálicas.
(1990-12-01)
The purpose of this study was to compare the enamel/resin/metal bond tensile strength by using human canines, in which castings were bonded. These castings were obtained by Co-Cr or Ni-Cr alloys and showed four types of ...
Estudo comaprativo da resistência da união esmalt/resina/metal. Efeito de resinas de fixação, artifícios retentivos e ligas metálicas.
(1990-12-01)
The purpose of this study was to compare the enamel/resin/metal bond tensile strength by using human canines, in which castings were bonded. These castings were obtained by Co-Cr or Ni-Cr alloys and showed four types of ...
Estudo experimental do uso de rebolos convencionais na usinagem do aço VP-50 utilizado na retificação cilíndrica, por meio de diferentes métodos de lubrirrefrigeração
(2016-01-01)
The grinding is a precise machining process, one of the most expensive steps in the manufacture of in-jection molds for thermoplastic. In grinding the grinding wheel abrasive tool is responsible for removal. The number and ...
Comparison of the shear bond strengths of conventional mesh bases and sandblasted orthodontic bracket bases
(2009-10-01)
This study aimed to compare in vitro the shear bond strength between metallic brackets (Abzil) with conventional mesh bases and metallic brackets with bases industrially sandblasted with aluminum oxide using three adhesive ...
Comparison of the shear bond strengths of conventional mesh bases and sandblasted orthodontic bracket bases
(2009-10-01)
This study aimed to compare in vitro the shear bond strength between metallic brackets (Abzil) with conventional mesh bases and metallic brackets with bases industrially sandblasted with aluminum oxide using three adhesive ...
Catalytic Behaviour of Mesoporous Cobalt-Aluminum Oxides for CO Oxidation
(Hindawi Publishing Corporation, 2014-10)
Ordered mesoporous materials are promising catalyst supports due to their uniform pore size distribution, high specific surface area and pore volume, tunable pore sizes, and long-range ordering of the pore packing. The ...