Search results

Lloyd, British Corrosion Journal, 15 (1980) 77 [4] V.
Sci and Tech., 15 (1999) 1308 [5] Hyuntae Yang and Sangtae Kim, Materials Science and Engineering A, 319-321 (2001) 316- 320 [6] S.
Kheirandish, Materials Letters, 61 (2007) 3059
Pandey, Materials Science -Poland, 26 (2008) 617 [17] B.B.Jha, B.K.Mishra, B.
Satpati and S.N.Ojha, Materials Science-Poland, 28 (2010) 335 [18] R.

The wall also needs limited concrete material.
The needed filling materials can be formed by straw clay bodies or aerated concrete building block.
Aerated concrete building block also has many features, such as the materials can be easily got, the price is low, it is energy-saving, environmental-friendly and it can be easily processed.
The main mechanical indexes of the materials of composed wall with site laying reinforcing rib are shown in Table I and Table II.
Its research process is subsidized by Jilin Science and Technology Bureau.

The structure of the oxide layer of T91 high temperature superheater tube The thickness of the oxide layer of T91 tube is thicker than some other tubes which are made up of other materials.
The impact of the structure and the protective properties by the water conditions With the supercritical running of boiler, the requirement of the tube materials become higher.
The widely used tube materials are T91 and TP347 at present stage.
So if the design materials are allowed under the normal conditions, the well protective oxide layer will be formed on it with good anticorrosion performance.
Journal of Materials Protection. 2003.6 (36): 9-11.

The samples for measuring physical-mechanic properties according ISO 572-2 were manufactured using a Brabender hot press, a hydraulic press for punching materials from the pressed plates composites and a compression mold (Fig. 2).
By hot pressing the composites mixtures were processed into plates of 2.5 mm thickness from which were punched on a hydraulic press the materials to fit the compression mold.
The compression mold was first preheated to 165 °C, then each cavity was filled with punched materials (Fig. 2).
For the P7 recipe there were observed difficulties in plasticising the materials.
Gopakumar, Properties and Crystallization of Malleated Polypropylene /Graphite Flake Nanocomposites, Polymer Journal, Vol. 38, No. 9, pp. 920-929 (2006) [10] L.Altay, M.

Introduction Hard machining can be described as the machining of materials with hardness above 40 HRC and up to 62 HRC [1].
In this contribution knowledge of comparative quantitative evaluation of hardened materials surface micro geometry expressed by 2D parameters as Ra, Rq, Rz, Rt, RSm, Rsk, Rku, and Abbot Firestone curve and selected 3D parameters SRa, SRq, SRt, SRsk, SRku when hard turning workpiece with different hardness using mixed oxide ceramic insert are presented.
The cutting tool material was mixed oxide alumina ceramics CM D310 (70% AL2O3, ZrO2, 30% TiC).
Acknowledgement Presented results were carried out within Research Grant Projects VEGA No. 1/0279/11 and 1/0500/12 supported by Scientific Grant Agency of the Ministry of Education of Slovak Republic and the Slovak Academy of Science.
Gyani, Accuracy of hard turning, Journal of Materials Processing Technology. 202 (2008) 328−338

Advanced Materials Research, Vols. 189-193(2011), p.1117
Advanced Materials Research, Vol. 80-81(2011), p.261
Materials and Structures, Vols. 31(1998) No.3, p.683
Fatigue and Fracture of Engineering Materials and Structures, Vols. 12(1989), No.1, p.9
American Society for Testing and Materials, Vols. 536(1973), p.423

The new style testing technique can widely used in the industries of the oil, gas, mining and petrochemical, which can quantitatively detect length and depth information of the surface crack in a wide range of structural metal materials[2].
Due to the fact that the testing signal can be influenced by many factors, such as detection direction, lift-off height and material attribute, the signal voltage amplitude of ferromagnetic material (such as low carbon steel) is always in the millivolt magnitude, while for the non-ferromagnetic material (such as aluminum), the signal is weak to microvolt level.
Therefore, it is necessary to design a low noise and adjustable gain amplifier circuit to meet the need of amplifying the initial preceding stage signal for different materials and different detection directions.
In the ACFM testing, different materials have different optimal detecting frequency, therefore.
It is very necessary to design a filter circuit with adjustable center frequency to meet the needs of testing different materials.

Introduction Aerospace alloys machinability is increasing its importance since new materials are developed to meet the growing demand for higher temperature-resistant materials and for more efficient aero-engines [1].
All the cutting parameters, including: tool and coating materials choice, tool geometry, machining strategy, cutting speed, feed rate, depth-of cut, lubrication, must be controlled in order to achieve both an acceptable tool life and a correct surface integrity for the machined parts [3].
More in detail, it results clear the role played by of the engaging angle on the tool life (failure or wear) for the investigated couple of materials (workpiece and tool).
Modelling the correlation between processing parameters and properties in titanium alloys using artificial neural network, Computational Materials Science, 21 (2001) 375-394
Spowage, Surface integrity when machining age hardened Inconel 718 with coated cutting tools, International Journal of Mach.

Therefore, metal materials including Cu and SS which could be oxidized, become the bottleneck of the thermal stability of the coating.
[2] R.Gampp, P.Oelhafen, P.Gantenbein, S.Brunold, U.Frei, Accelerated ageing tests of chromium containing amorphous hydrogenated carbon coatings for solar collectors, Solar Energy Materials and Solar Cells 54 (1998) 369-377
[5] Qi-Chu Zhang, Recent progress in high-temperature solar selective coatings, Solar Energy Materials & Solar Cells, 62 (2000) 63-74
[8] Zhou Yipin, Zhao Yongjin, Zhang Yanjin, Arrhenius equation and activation energy, Journal of Shihezi Agricultural College, 25 (1995) 76-80
[12] Yongfu Zhu, Kouji Mimura and Minoru Isshiki, Oxidation mechanism of copper at 623-1073K, materials transactions, 43 (2002) 2173-2176

The prepared materials were applied for the photocatalytic reduction of CO2, and the produced amount of CH3OH was 618.7 mmol·gcat–1.
Experimental Materials and chemicals.
The morphology of the materials was characterized by transmission electron microscopy (TEM, Tecnai F20, FEI Corporation, United States).
Tan, Visible light assisted photocatalytic reduction of CO2 to ethane using CQDs/Cu2O nanocomposite photocatalyst, Diamond and Related Materials. 91 (2019) 64-73
MacFarlane, Carbon quantum dots/Cu2O heterostructures for solar-light-driven conversion of CO2 to methanol, Advanced Energy Materials. 5 (2015) 1401077