Aluminum and copper deposition through the process of thermal flame spray on polypropylene-pine wood fiber composite filaments and their applications

2021 ◽  
pp. 002199832110365
Author(s):  
Sônia MA Veroneze ◽  
Thais HS Flores-Sahagun ◽  
Ramón SC Paredes ◽  
Kestur Gundappa Satyanarayana
Keyword(s):  
Fiber Composite ◽  
Wood Fiber ◽  
Physical And Mechanical Properties ◽  
Heat Treating ◽  
Flame Spray ◽  
Pine Wood ◽  
Thermal Spray Process ◽  
Spray Process ◽  
Copper Coatings ◽  
Study Results

This paper presents a study about polypropylene-pine wood composites, both as filaments and products, coated with aluminum (Al) or copper (Cu), obtained through flame thermal spray process after subjecting the composites to thermal treatments in the second and third step of the study. Results revealed that a previous aluminum layer was needed in order to obtain copper coatings on the composites. The physical and mechanical properties of both metal coated composite filaments were also evaluated and compared with the uncoated composite filaments with and without heat treating these. Consequently, it was observed that the nature of the coating adhesion on the substrates was mechanical, and therefore abrasion blasting of filaments or the use of a higher wood fiber content in the composite improved the Al or Cu adhesion. Also, it was observed that extruded wood fiber/PP filaments should not be cooled in water because pieces might be molded directly once the moisture affects the metal coatings adhesion onto the substrates.

scholarly journals Development and Characterization of Phosphate-Based Glass Coatings via Suspension High-Velocity Oxy-Fuel (SHVOF) Thermal Spray Process

2021 ◽  
Author(s):  
S. Bano ◽  
A. Rincon Romero ◽  
Md Towhidul Islam ◽  
D. M. Grant ◽  
I. Ahmed ◽  
...  
Keyword(s):  
Thermal Spray ◽  
High Velocity ◽  
Structural Changes ◽  
Physical And Mechanical Properties ◽  
Oxygen Species ◽  
Ion Release ◽  
Thermal Spray Process ◽  
Initial Glass ◽  
Spray Process ◽  
Degradation Rates

AbstractPhosphate-based glasses (PBGs) are promising materials for biomedical applications due to their biocompatible and fully resorbable characteristics in aqueous environments. These glasses can be coated onto metal substrate via the technique of suspension high-velocity oxy-fuel (SHVOF) thermal spraying to produce nanostructured coatings with improved physical and mechanical properties. PBGs coatings were produced using SHVOF thermal spray process at 50 and 75 kW flame power. The 75 kW coating was rougher (Ra = 3.6 ± 0.1 µm) than the 50 kW coating (Ra = 2.7 ± 0.1 µm), whereas the 50 kW coating was much thicker (24.6 ± 2.3 µm) than the 75 kW coating (16.0 ± 3.4 µm). Due to the rougher surface, the 75 kW coating showed high degradation and ion release rates. Moreover, structural changes were observed by Raman analysis, and the initial glass formulation contained Q1 (phosphate tetrahedra with one-bridging oxygen) and Q2 (phosphate tetrahedra with two-bridging oxygen) species. However, the coatings showed a reduction of Q2 species and higher concentrations of Q1 and Q0 (phosphate tetrahedra with no-bridging oxygen) species, which led to lower degradation rates and reduced ion release profiles in the glass coating compared to the initial glass.

scholarly journals AVALIAÇÃO DAS PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS DE FIBRAS DE MÉDIA DENSIDADE (MDF) PRODUZIDOS PELAS INDÚSTRIAS BRASILEIRAS

FLORESTA ◽  
2010 ◽  
Vol 40 (2) ◽  
Author(s):  
Luciane Paes Torquato ◽  
Setsuo Iwakiri ◽  
Ghislaine Miranda Bonduelle ◽  
Carlos Eduardo Camargo de Albuquerque ◽  
Jorge Luís Monteiro de Matos
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Internal Bond ◽  
Medium Density Fiberboard ◽  
Wood Fiber ◽  
Physical And Mechanical Properties ◽  
Thickness Swelling ◽  
European Standard ◽  
Pine Wood ◽  
Minimum Requirements

Este trabalho foi desenvolvido com o objetivo de avaliar a qualidade de painéis MDF produzidos pelas indústrias brasileiras com base nos resultados de propriedades físicas e mecânicas dos painéis tipo “standard” com 15 mm de espessura. Foram selecionadas quatro empresas produtoras de painéis MDF, que foram identificadas pelas letras A, B, C e D. Para as avaliações das propriedades dos painéis, foram, coletadas para todas as empresas, três painéis-amostras produzidos com madeira de pinus, além de painéis de eucalipto para a empresa D. As propriedades avaliadas foram: teor de umidade, densidade, perfil de densidade, absorção de água e inchamento em espessura 2 e 24 horas, ligação interna e flexão estática. Os ensaios foram realizados de acordo com a norma europeia EM, e os resultados foram comparados com os requisitos da norma EN 622-5:2006. Os painéis produzidos com madeira de eucalipto apresentaram valores médios inferiores de ligação interna e média de absorção de água maior que os obtidos com painéis de pinus. Os valores médios de inchamento em espessura 24 horas, MOE e MOR em flexão estática paralela dos painéis MDF comerciais avaliados nesta pesquisa atendem aos requisitos mínimos da norma EN 622-5:2006. Os valores médios de ligação interna foram inferiores em relação aos requisitos dessa norma. Palavras-chave: Painéis MDF; pinus; fibras de madeira.   Abstract Evaluation of physical and mechanical properties of medium density fiberboard (MDF) manufactured from brazilian industries. This research was developed to evaluate the quality of MDF manufactured by brazilian industries based on the results of physical and mechanical properties of the standard boards with 15 mm thickness. Four factories were selected and identified as A, B, C, and D. For the evaluation of the board properties, they were collected from the all factories three samples produced by pine wood, besides of sample produced by eucalipto wood to the factory D. The following board properties were evaluated: moisture content, density, density profile, water absorption and thickness swelling 2 and 24 hours, internal bond and static bending. The tests were carried out according to European Standard EN and the results were compared with the requirements of European Standard EN 622-5:2006. The boards manufactured from eucalipto wood showed lower average values of internal bond and higher water absorption in comparison to boards manufactured from pine wood. The average values of thickness swelling after 24 hours water soaking, MOE and MOR parallel static bending of the commercial MDF evaluated in this study attends to minimum requirements of EN 622-5:2006. The average values of internal bond were lower than in relation to the EN standard.Keywords: MDF; pine; wood fiber.

scholarly journals A Review on Plasma Sprayed Al-SiC Composite Coatings

2013 ◽  
Vol 1 (1) ◽  
pp. 15-22
Author(s):  
S Tailor ◽  
◽  
RM Mohanty ◽  
PR Soni ◽  
◽  
...  
Keyword(s):  
Thermal Spray ◽  
Composite Coatings ◽  
Ceramic Coatings ◽  
Thermal Barrier ◽  
Thermal Spray Process ◽  
Spray Process ◽  
Reinforced Composite ◽  
Study Results ◽  
Plasma Sprayed

This review is done essentially to study results in the field of synthesis and characterization of SiC reinforced Al-SiC composite coatings using thermal spray process. SiC reinforced composite coatings produced by thermal spray process are being developed for a wide variety of applications, e.g. aerospace, automotive, structural and industrial. It is anticipated that, if properly deposited, Al-ceramic coatings could also provide improved properties like wear resistance and thermal barrier coatings. These results clearly demonstrate that the significant improvement in coating performance can be achieved by utilizing proper thermal spray conditions and SiC % in composite coatings. This paper presents a critical review on SiC reinforced Al-SiC composite coatings using thermal spray by various researchers in past years. The researcher’s findings with necessary parameters for achieve good Al-SiC composite coatings are given.

scholarly journals Properties of Copper Coatings Sprayed by Cold Spray and High Velocity Flame Spray Process

2004 ◽  
Vol 2004.41 (0) ◽  
pp. 231-232
Author(s):  
Emi KITADE ◽  
Satomi HIRAISHI ◽  
Yu TAKENOUCHI ◽  
Kazuhiko SAKAKI ◽  
Yasuo SHIMIZU
Keyword(s):  
Cold Spray ◽  
High Velocity ◽  
Flame Spray ◽  
Spray Process ◽  
Copper Coatings

BRUSH ALLOY 3

Alloy Digest ◽  
1983 ◽  
Vol 32 (3) ◽  
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Copper Alloy ◽  
Elevated Temperatures ◽  
Physical And Mechanical Properties ◽  
Heat Treating ◽  
Good Resistance ◽  
Good Corrosion Resistance

Abstract BRUSH Alloy 3 offers the highest electrical and thermal conductivity of any beryllium-copper alloy. It possesses an excellent combination of moderate strength, good corrosion resistance and good resistance to moderately elevated temperatures. Because of its unique physical and mechanical properties, Brush Alloy 3 finds widespread use in welding applications (RWMA Class 3), current-carrying springs, switch and instrument parts and similar components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as casting, forming, heat treating, machining, joining, and surface treatment. Filing Code: Cu-454. Producer or source: Brush Wellman Inc..

ANSONIA C14500

Alloy Digest ◽  
2008 ◽  
Vol 57 (3) ◽  
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Pure Copper ◽  
Physical And Mechanical Properties ◽  
Heat Treating

Abstract Ansonia alloy C14500 has unique fabrication properties while maintaining both physical and mechanical properties close to pure copper. The addition of Tellurium makes the alloy free machining. This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength. It also includes information on forming, heat treating, machining, and joining. Filing Code: CU-752. Producer or source: Ansonia Copper & Brass Inc.

KAISER ALUMINUM ALLOY KA62

Alloy Digest ◽  
1999 ◽  
Vol 48 (10) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Physical And Mechanical Properties ◽  
Heat Treating ◽  
Lead Free ◽  
Kaiser Aluminum

Abstract Kaiser Aluminum alloy KA62 (Tennalum alloy KA62) is a lead-free alternative to 6262. It offers good machinability and corrosion resistance and displays good acceptance of coatings (anodize response). It can be used in place of 6262 because its physical and mechanical properties are equivalent to those of 6262 (see Alloy Digest Al-361, September 1999). This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: AL-362. Producer or source: Tennalum, A Division of Kaiser Aluminum.

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