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Online since: October 2020
Authors: Suwarno Suwarno, Handi Muhtadi
The citric acid mixed raw material, however, may affect the corrosion behavior of the austenitic stainless steel made equipment.
The latter method is performed using the electrochemical properties of the material to define the behavior of the corrosion system immediately.
It should be noted that polarization results can only be good for pristine surface immersed into a solution for a short amount of time with precise amount solution chemistry, temperature, aeration, and many other factors.
The potential sweep rate is responsible for altering the recorded curve, especially in the affected region [5,6], and directly affect the curve recorded.
Frankel, Pitting Corrosion of Metals: A Review of the Critical Factors, J.
Online since: July 2019
Authors: Nur Hidayati, Herry Purnama, Muhammad Mujiburohman, Hamid Hamid, Arnaldi Dwilaksita, Fara R. Zubaida
ABS, a mixture of co-polymer that has strong and durable properties, also possess a good set of temperature, electrical and mechanical properties as a thermoplastic polymer [11].
In addition, the conductivity and methanol permeability properties on sABS membrane have a correlation with IEC and DS, whereas absorption properties are less affected by sulphuric acid concentration and reaction time in the sulfonation process [9].
Thus, efforts to increase conductivity properties are needed.
However, excess water uptake may reduce the mechanical properties caused by the disassociation of membrane back bone.
The technique of blending polyelectrolyte resulted better properties than pure chitosan polyelectrolyte.
Online since: December 2013
Authors: Rostislav Drochytka, Bozena Vacenovska, Tomas Bina
Without the exact identification of the hazardous waste properties – determining the chemical mineralogical composition, identifying hazardous properties, physical – chemical and physical – mechanical properties – it is not possible to use the waste in a safe manner or to find the optimal use of the physical solidification product.
Such selected recipes reported the highest efficiency during the fixation of pollutants in the matrix of modified wastes and good physical – mechanical properties.
The verified properties of the solidification products also included an unconfined compression strength test which characterizes the stability and resistance of the solidification products to mechanical damage.
It implies from the results of the compression strength and resistance to freezing and water that the samples reported good physical mechanical properties for use in the active zone for roads.
Chaudhary, Factors affecting hazardous waste solidification/stabilization: A review, Journal of Hazardous Materials 137 (2006), pp.267-276
Online since: May 2020
Authors: F.F. Musin, S.N. Galyshev, A.I. Gomzin, Rida Gallyamova, Nail Zaripov
At the moment carbon fibers produced from several precursors, and the physical and mechanical properties of carbon fibers vary depending on the precursor material and the heat treatment conditions.
Thus, the fiber type affects the nature of the bond at the matrix-fiber interface, and the bond at the interface is one of the main factors determining the mechanical properties of the composite.
However, this information could help the composites developers select the type of carbon fiber for a specific matrix, focusing on its properties.
The main carbon fibers properties are shown in Table 1.
Rabinovitch, On the role of brittle interfacial phases on the mechanical properties of carbon fibre reinforced Al-based matrix composites, Mater.
Online since: December 2012
Authors: Da Lv, Xin Xin Zhang, Ming Deng
Urban Landfill Ecological Function and Planning Ecological function The land system is a complex material system at the surface not only including all the natural factors, landform, climate, geology, hydrology, soil, plants and animals, but also the impact on human productive activity, past or modern.
Looks unrelated but two aspects are mutually associated, affecting each other.Pollution Control and Prevention Landfill contour design Leachate treatment Landfill end-use Cover soil layer thickness Landfill Gas Collection Land subsidence and collase Cr-torlerant plants screening Landscape Vegetation Reconstruction Fig. 1 Landfill landscape ecological reconstruction design diagram Contour design and leachate decrement Contour design mainly refers to the external morphology of the landfill design, which it has manifested mainly through the shape design and the vegetation configuration.
Taking into account mechanical operation, plant growth and the safety of waste body ,it is suitable that the outward form with a slope is 1:3 in the landfill contour design. [3, 4] Cover soil layer thickness and vegetation protection Closed landfills have been converted to alternate uses for many years.
Table. 1 The covering layer thickness in closed landfill surface design(m) End-use Farmland Pasture Lawn Treen ursery Brush and Timberland Shallow-rooted trees Deep-rooted trees design thickness 1.5~2.0 2.0~3.0 1.0~1.5 2.0~3.0 1.5~2.0 2.0~3.0 3.0~5.0 Cr-torlerant plants screening and landscape construction Methane(CH4) and Carbon dioxide(CO2) stresses are two of the main factors limiting the survival and growth of greenbelt plants on landfill sites, while the selection of adaptive plants is of significance in the re-vegetation and recover of the ladfill.
Common lawn efficiency comparison is shown in table. 2.Then according the end-use , geographical position and trees specific properties, we can introduce ecological effect and attractive ornamental plants in order to meet at the garden green landscape evaluation index system.
Online since: January 2021
Authors: Carlos Camurri, Jasmín Maril, Eric Romero
However, the optimum performance of these alloys requires an understanding of the operational conditions and the physical, chemical and metallurgical properties of the alloy used [3–5].
Another important factor in understanding the wear mechanism of an alloy is its metallurgical properties.
The size, shape, orientation and connectivity of the carbides affect toughness and wear resistance.
Since the main reason for abrasion-resistance in cast irons is the presence of hard, wear-resistant carbides [11–13], some studies have focused on the relationship between wear and the morphology of the carbides [1,2, 11–13]; others have correlated wear with the mechanical properties of these cast irons [1, 14-15].
No correlation between hardness and wear resistance were observed when the difference in alloy hardness was small, indicating that other factors must be analyzed.
Online since: March 2024
Authors: Ishant Jain, Ganesh Basak, Abhijnan Chowdhuri
The major factors that affect the performance of protective coatings, according to NACE Standard RP0169-96 Section 5, are: a) surface preparation, b) wetting, c) bonding, and d) adhesion-cohesion phenomena [4].
It is common to use mild steel panels (15 cm×l0 cm) to evaluate the different properties of coatings. 
Then the panels were subjected to different testing procedures to assess the mechanical properties as well as durability.
Hardness is proportional to the abrasion resistance properties of a coating.
Overall, the new food-grade epoxy coating is a promising alternative to traditional epoxy coatings for water pipeline cathodic protection, with comparable technical properties and without the associated health concerns.
Online since: February 2011
Authors: Lian Guang Wang, Le Zhou, Sui Li, Hong Tao Liu
However, studying of the component to bend the mechanical properties will be helpful to know the work mechanism of the pillar bending.
It will form foundation of mechanical properties.
Fig. 3 Failure pattern of specimen Parametric analysis By analyzing the test results, it discovers that there are many factors that affect work mechanism of GFRP tube SRHC members in bending members and the destruction pattern.
Glass filled steel tubular column Experimental Study of Mechanical Properties [J].
FRP pipe properties of reinforced concrete structures [J].
Online since: June 2012
Authors: Kye Bock Lee, Dong Ryun Shin, Ki Woo Lee, Wook Hyun Lee, Chan Chul Jang, Won Gook Lee, Nak Keun Kim, Seok Ho Rhi
It takes advantage of the special properties of beta-alumina, which is an excellent conductor of alkali metal ions but a bad conductor of electrons, which can be called as an electrolyte.
Also various parameters such as BASE tube, evaporator and condenser and artery cable geometries were tested to find the optimum design factors of AMTEC.
The design variables of BASE tube such as diameter, length, and porosity affect for the AMTEC performance.
In the present study, the nominal operation point of the AMTEC/TE converters is decided various factors based on the system geometrical dimensions of components such as evaporator, BASE tube, and condenser plate and cable artery.
Also many parameters were tested to find the optimum design factors of AMTEC.
Online since: October 2024
Authors: Atitsa Petchsuk, Pakorn Opaprakasit, Yusuf Arya Yudanto
In comparison to conventional plastics, such as polystyrene (PS) and polyethylene terephthalate (PET), PLA possesses comparable mechanical and physical properties (such as high modulus, high strength, great clarity, and barrier properties) [2].
Therefore, it is of the highest concern to generate polymeric foams with enhanced performance to understand the relationship between influential factors in foaming processes with the cellular morphology and final properties [37].
Although a series of single experiments can reveal the key factors affecting foam behavior, they may not detect second-order effects.
The one-factor-at-a-time (OFAT) approach is limited in capturing interactions between factors.
Poly (lactic acid): synthesis, structures, properties, processing, applications, and end of life: John Wiley & Sons; 2022
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