scholarly journals Evaluation of heating temperature and time on bending properties of Taurus cedar wood

2021 ◽  
pp. 432-438
Author(s):  
Tuğba YILMAZ AYDIN
Keyword(s):  
Heating Temperature ◽  
Bending Properties

scholarly journals Effects of Temperature on Bending Properties of Three-Dimensional and Five-Directional Braided Composite

Molecules ◽  
2019 ◽  
Vol 24 (21) ◽  
pp. 3977
Author(s):  
Li ◽  
Jia ◽  
Pei ◽  
Wan ◽  
Li ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Room Temperature ◽  
Bending Strength ◽  
Heating Temperature ◽  
Three Dimensional ◽  
Heating Time ◽  
Resin Composites ◽  
Bending Properties ◽  
Different Temperatures ◽  
Epoxy Resin Composites

The bending properties of three-dimensional (3Dim) and five-directional (5Dir) braided/epoxy resin composites at room temperature, 90 °C, 110 °C, and 150 °C and heating for 0.25 h, 10 h, and 30 h, respectively, were studied. The effect of different temperatures and heating times on the bending property of these composites was discussed. The results showed that the bending strength of these composites at 90 °C, 110 °C, and 150 °C and heating time of 0.25 h is 33.86%, 46.27%, and 83.94% lower, respectively, than that at room temperature. In addition, 3Dim–5Dir braided composites exhibit different damage modes at different temperatures, revealing different failure mechanisms. Heating temperature has greater influence on the bending properties of these composites than heating time. The results provided a basis for the application of resin-based 3Dim–5Dir braided/epoxy resin composites at different temperatures.

The use of insoluble matter of Moroccan oil shale for removal of dyes from aqueous solution

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Methylene Blue ◽  
Oil Shale ◽  
Heating Temperature ◽  
Blue Dye ◽  
Adsorption Capacities ◽  
Experimental Parameters ◽  
Initial Ph ◽  
New Material ◽  
Activating Agent ◽  
Moderate Cost

The study aims to use an adsorbent natural based of Moroccan oil shale of Timahdit area (Y layer) in a physical-chemical adsorption process for treating industrial discharges colorful. The used adsorbent is the insoluble party of the sub-critical extraction of decarbonized oil shale of Timahdit. The tests performed on the methylene blue (MB), showed a strong elimination in the first 10 minutes. The influences of various experimental parameters were studied: mass ratio of adsorbent, time and temperature of thermal treatment, contact time, pH of MB and heating temperature of solution on the parameters of material were studied. The experimental results have shown that the adsorption of methylene blue dye by the adsorbent is more than 90% at initial pH a range 6-7 at room temperature for 30 minutes. The process is simple and the adsorbent produced is a new material with interesting adsorption capacities of moderate cost which does not require an activating agent and can be used as industrial adsorbent for the decontamination of effluents containing organic pollutants.

PENGARUH SUHU PEMANASAN FORMALIN 10% TERHADAP PERKEMBANGAN TELUR Ascaris lumbricoides

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Ni Putu Aryadnyani
Keyword(s):  
Experimental Study ◽  
Environmental Factors ◽  
Ascaris Lumbricoides ◽  
Heating Temperature ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Design Result

AbstractBackground Ascaris lumbricoides eggs had very thick walls consisted of three layers, they were albuminoid layer, hyaline layer and vitelin layer. These layers were impermeable causing the Ascaris lumbricoides eggs resistant to less supportive environmental factors. Formalin 10% was a preservative that was often used to preserve faeces containing parasites such as protozoa and worm eggs. However, without heating, formalin 10% was not effective to preserve the Ascaris lumbricoides eggs because they would keep developing to become infective (containing larvae). Objective This study aims to prove whether there is an effect of adding 10% formalin which is heated at 60 C, 70 C and 80 C to the development of Ascaris lumbricoides eggs.Methods The design of this research was an experimental study with The Randomized Posttest Control Group Design. Result The Ascaris lumbricoides eggs were still growing into infective eggs in faeces although they were heated by formalin 10% at 60C, 70C and 80C. conclusion Based on the results of the study, there was no effect of heating temperature of formalin 10% on the development of Ascaris lumbricoides egg.Keywords: Formalin 10%, Ascaris lumbricoides, Heating, Soil Transmitted Helminth

Effect of increased temperatures on structures of titanium VT22 alloy strengthened by electromechanical processing

2020 ◽  
pp. 376-379
Author(s):  
S.A. Yakovlev ◽  
M.M. Zamal’dinov ◽  
A.A. Glushchenko ◽  
I.R. Salakhutdinov
Keyword(s):  
Titanium Alloys ◽  
Heating Temperature ◽  
Alloy Vt22 ◽  
Vt22 Alloy ◽  
Machine Parts ◽  
Operational Modes

The hardening methods of titanium alloys are analyzed. Effect of heating temperature on resistance of VT22 alloy structures strengthened by electromechanical processing is defined. Results of change in hardness of the strengthened structures depending on heating temperature are presented. Recommendations on the operational modes of machine parts made of alloy VT22 strengthened by electromechanical processing are provided.

Study on bending properties of Miscanthus

2012 ◽  
Vol 37 (6) ◽  
pp. 681-685
Author(s):  
Jun YAO ◽  
Ming LI ◽  
Chu-zhou TANG ◽  
Yi-fan LIU
Keyword(s):  
Bending Properties

Heat Treatment Influence on the Corrosion Resistance of a Cu-Al-Fe-Mn Bronze

2018 ◽  
Vol 69 (5) ◽  
pp. 1055-1059 ◽  
Author(s):  
Mariana Ciurdas ◽  
Ioana Arina Gherghescu ◽  
Sorin Ciuca ◽  
Alina Daniela Necsulescu ◽  
Cosmin Cotrut ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Structural Changes ◽  
Heating Temperature ◽  
Galvanic Corrosion ◽  
Cooling Water ◽  
Open Circuit ◽  
Water Quenching ◽  
Heat Treated ◽  
Different Temperatures

Aluminium bronzes are exhibiting good corrosion resistance in saline environments combined with high mechanical properties. Their corrosion resistance is obviously confered by the alloy chemical composition, but it can also be improved by heat treatment structural changes. In the present paper, five Cu-Al-Fe-Mn bronze samples were subjected to annealing heat treatments with furnace cooling, water quenching and water quenching followed by tempering at three different temperatures: 200, 400 and 550�C. The heating temperature on annealing and quenching was 900�C. The structure of the heat treated samples was studied by optical and scanning electron microscopy. Subsequently, the five samples were submitted to corrosion tests. The best resistance to galvanic corrosion was showed by the quenched sample, but it can be said that all samples are characterized by close values of open-circuit potentials and corrosion potentials. Concerning the susceptibility to other types of corrosion (selective leaching, pitting, crevice corrosion), the best corrosion resistant structure consists of a solid solution, g2 and k compounds, corresponding to the quenched and 550�C tempered sample.

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