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Online since: March 2014
Authors: Xu Sheng Yao, Lai Xia Yang, Ying Bao Xue
In this paper, the selective laser sintering mechanism of sucrose powder materials were studied.
At present, SLS molding materials mainly metal materials, polymer materials, ceramics materials such as, but the SLS method currently used by most of the materials in the molding process has harmful gas emissions; the price is relatively expensive, resulting in higher production cost.
So far, according to the investigation at home and abroad, there is no use sucrose as a molding material by SLS, while sucrose compared with other materials, with a wide range of sources, the price cheaper, and in the process without pollution.
Journal of Manufacturing Technology Management.
Key Engineering Materials, 2007,329:613—618
At present, SLS molding materials mainly metal materials, polymer materials, ceramics materials such as, but the SLS method currently used by most of the materials in the molding process has harmful gas emissions; the price is relatively expensive, resulting in higher production cost.
So far, according to the investigation at home and abroad, there is no use sucrose as a molding material by SLS, while sucrose compared with other materials, with a wide range of sources, the price cheaper, and in the process without pollution.
Journal of Manufacturing Technology Management.
Key Engineering Materials, 2007,329:613—618
Online since: December 2024
Authors: Dahlia Patah, Amry Dasar, Balqis Shintarahayu, Fakhruddin Fakhruddin, Apriansyah Apriansyah
Concrete in construction has increased the need for concrete materials, thus triggering large-scale mining of sand as a concrete-forming material.
Experimental Outline Materials.
Karahan, "Properties of steel fiber reinforced fly ash concrete," Construction and Building Materials, vol. 23, no. 1, p. 392–399, 2009
Caronge, "Strength Development of Seawater Mixed and Cured Concrete with Various Replacement Ratios of Fly Ash," Materials Science Forum, vol. 1091, pp. 111-118, 2023
Dasar, "Pasir dan Kerikil Sungai Mappili sebagai material Lokal untuk Campuran Beton di Sulawesi Barat," BANDAR: JOURNAL OF CIVIL ENGINEERING, vol. 3, no. 2, pp. 9-14, 2021
Experimental Outline Materials.
Karahan, "Properties of steel fiber reinforced fly ash concrete," Construction and Building Materials, vol. 23, no. 1, p. 392–399, 2009
Caronge, "Strength Development of Seawater Mixed and Cured Concrete with Various Replacement Ratios of Fly Ash," Materials Science Forum, vol. 1091, pp. 111-118, 2023
Dasar, "Pasir dan Kerikil Sungai Mappili sebagai material Lokal untuk Campuran Beton di Sulawesi Barat," BANDAR: JOURNAL OF CIVIL ENGINEERING, vol. 3, no. 2, pp. 9-14, 2021
Online since: January 2009
Authors: Quan Lin Niu, Chong Zhi Li
Effect of aggregate volume fraction on the charge passed of mortar and
concrete
Quan-Lin Niu
1,a
Chong-Zhi Li
2,b
1
School of materials science and technology, Shandong University of Technology, Zibo Shandong
255049
2 Beijing university of civil engineering and architecture
a
mail: niuquanlin@tsinghua.org.cn
b mail: lichongzhi@bucea.edu.cn
Keywords: Charge passed; aggregate; differential expression of Ohm law;volume fraction
Abstract: Charge passed of mortars with different aggregate volume fractions was tested according
to ASTM C1202, and the differential expression of the Ohm law was introduced to explain the
relationship between charge passed data and aggregate fractions.Cl- penetration depth of the
corresponding mortars and concretes was measured to illustrate the influence of the aggregate
volume fraction on their chloride permeability.
Experimental Materials.
[3] Geiker,m., Thaulow,n., and Anderson,p.j., assessment of rapid chloride permeability of concrete with and without mineral admixtures, proceedings, in: the fifth international conference on durability of building materials and components, 1990, pp45-55
Caldwell, Effect of supplementary cementing materials on the specific conductivity of pore solution and its implication on the rapid chloride permeability test results, ACI material journal,V.95,N.4,1998,389-394
[8] Otsuki, N; Nagataki, S; and Nakashita, K., Evaluation of AgNO3 nitration solution spray method for measurement of chloride penetration into the hardened cementitious matrix materials, ACI Materials Journal, V. 89 (1992).
Experimental Materials.
[3] Geiker,m., Thaulow,n., and Anderson,p.j., assessment of rapid chloride permeability of concrete with and without mineral admixtures, proceedings, in: the fifth international conference on durability of building materials and components, 1990, pp45-55
Caldwell, Effect of supplementary cementing materials on the specific conductivity of pore solution and its implication on the rapid chloride permeability test results, ACI material journal,V.95,N.4,1998,389-394
[8] Otsuki, N; Nagataki, S; and Nakashita, K., Evaluation of AgNO3 nitration solution spray method for measurement of chloride penetration into the hardened cementitious matrix materials, ACI Materials Journal, V. 89 (1992).
Online since: July 2014
Authors: Bruna da Costa Andrade, Marcelo Andrade Macedo
This improves the physical properties of these hexaferrites; therefore, they can be used in telecommunication applications, to increase the operational frequency of electronic devices, and as microwave absorbing materials.
Increasing the dopant concentration in W-type hexaferrites delivers better results in saturation magnetization, coercive field, and remnant magnetization; therefore, these materials can be used in high density and perpendicular magnetic recording medium applications [4].
The value of Mr/Ms obtained is 0.04, which suggests that the new hexaferrite has multiple magnetic domains; this is a behavior exhibited by ferrimagnetics materials (Mr/Ms < 0.5).
The coercivity of magnetic materials is directly correlated with magnetocrystalline anisotropy (Ha) according to the equation Ha = 2k1/Ms, (1) where k1 is the first anisotropy constant.
Pullar, Hexagonal ferrites: A review of the synthesis, properties and applications of hexaferrite ceramics, Progress in Materials Science 57 (2012) 1191–1334
Increasing the dopant concentration in W-type hexaferrites delivers better results in saturation magnetization, coercive field, and remnant magnetization; therefore, these materials can be used in high density and perpendicular magnetic recording medium applications [4].
The value of Mr/Ms obtained is 0.04, which suggests that the new hexaferrite has multiple magnetic domains; this is a behavior exhibited by ferrimagnetics materials (Mr/Ms < 0.5).
The coercivity of magnetic materials is directly correlated with magnetocrystalline anisotropy (Ha) according to the equation Ha = 2k1/Ms, (1) where k1 is the first anisotropy constant.
Pullar, Hexagonal ferrites: A review of the synthesis, properties and applications of hexaferrite ceramics, Progress in Materials Science 57 (2012) 1191–1334
Online since: May 2005
Authors: T. Paul Chow, Kenneth A. Jones, Anant K. Agarwal, S. Balachandran, Skip Scozzie
To evaluate the ionization integrals IN and IP for the different
materials described above the ionization coefficients need to be determined as a function of
the electric field E.
List of impact ionization coeffecients for various poly-types of SiC Material AN(cm -1) AP(cm -1 ) BN(cm -1 ) BP(cm -1 ) 4H<0001> 4.08e5 1.63e7 1.67e7 1.67e7 4H<11-20> 2.1e7 2.96e7 1.7e7 1.6e7 6H<0001> 4.57e8 5.13e6 5.24e7 1.57e7 One dimensional zero carrier simulations were performed for both NPN and PNP BJTs for the three materials presented in Table 1.
Lindefelt , " Study of Avalanche Breakdown and Impact Ionization in 4H Silicon Carbide", Journal of Electronic Materials, vol 27, n 4, pp.335-341, 1998
Shenai, "Performance evaluation of high power wide bandgap semiconductor rectifiers," Journal of Applied Physics, vol 85, n 9, pp. 6889-6897, 1999
Arai, International Conference on Silicon Carbide and Related Materials, Part 2, pp. 673-676, 2003
List of impact ionization coeffecients for various poly-types of SiC Material AN(cm -1) AP(cm -1 ) BN(cm -1 ) BP(cm -1 ) 4H<0001> 4.08e5 1.63e7 1.67e7 1.67e7 4H<11-20> 2.1e7 2.96e7 1.7e7 1.6e7 6H<0001> 4.57e8 5.13e6 5.24e7 1.57e7 One dimensional zero carrier simulations were performed for both NPN and PNP BJTs for the three materials presented in Table 1.
Lindefelt , " Study of Avalanche Breakdown and Impact Ionization in 4H Silicon Carbide", Journal of Electronic Materials, vol 27, n 4, pp.335-341, 1998
Shenai, "Performance evaluation of high power wide bandgap semiconductor rectifiers," Journal of Applied Physics, vol 85, n 9, pp. 6889-6897, 1999
Arai, International Conference on Silicon Carbide and Related Materials, Part 2, pp. 673-676, 2003
Online since: November 2007
Authors: Rimma Lapovok, Barry C. Muddle, Dacian Tomus
Material and Experimental Procedures
Material.
The HDH produced Ti-6Al-4V powder was supplied by Phelly Materials.
Patrick Martin and Lee Semiatin (AFRL/MLMD) References [1] Jim Williams, J. of Materials Processing Technology, 117 (2001), p. 370-373
Lapovok, Journal of Materials Science, 40:2, (2005), pp. 341-346
Anderson, Journal of Non-crystalline Solids 317 (203), 144-151
The HDH produced Ti-6Al-4V powder was supplied by Phelly Materials.
Patrick Martin and Lee Semiatin (AFRL/MLMD) References [1] Jim Williams, J. of Materials Processing Technology, 117 (2001), p. 370-373
Lapovok, Journal of Materials Science, 40:2, (2005), pp. 341-346
Anderson, Journal of Non-crystalline Solids 317 (203), 144-151
Online since: July 2014
Authors: P. Sivamurugan, P. Ravikumar
MATERIALS AND METHODOLOGY
An aluminum based cylindrical pressure vessel is used for conducting experiments.
N., “Development and Performance Evaluation of a Continuous Rice Cooker”, Journal of Food Engineering, 27, 1996, pp.371-387
Journal of Food Engineering, 28, 1996, pp.21–33
[8] Palazoglu, T.K., “Influence of convective heat transfer coefficient on the heating rate of materials with different thermal diffusivities”, Journal of Food Engineering, 73, 2006, pp.290–296
LWT – Food Science and Technology, 39, 2006, pp.455–459
N., “Development and Performance Evaluation of a Continuous Rice Cooker”, Journal of Food Engineering, 27, 1996, pp.371-387
Journal of Food Engineering, 28, 1996, pp.21–33
[8] Palazoglu, T.K., “Influence of convective heat transfer coefficient on the heating rate of materials with different thermal diffusivities”, Journal of Food Engineering, 73, 2006, pp.290–296
LWT – Food Science and Technology, 39, 2006, pp.455–459
Online since: February 2014
Authors: Chun Huang
The capability positively influences the enterprise’s performance [2, 3], and sustains the relationship orientation by promoting close and orderly exchange of materials, finance, and information (Gert & Peter,2009).
Journal of Business Research, Vol. 57, No.5 (2004), p.548-556
Rowley: Strategic Management Journal Vol. 21 (2000), p. 369-389
Lipparini: Strategic Management Journal Vol. 20(1999), p.317-338
Latora: Journal of Physics B, Vol. 46(2005), p. 101-107.
Journal of Business Research, Vol. 57, No.5 (2004), p.548-556
Rowley: Strategic Management Journal Vol. 21 (2000), p. 369-389
Lipparini: Strategic Management Journal Vol. 20(1999), p.317-338
Latora: Journal of Physics B, Vol. 46(2005), p. 101-107.
Online since: February 2011
Authors: Jin Yao, Wen Jie Xu
Raw materials would be manufactured into special parts according the customized needs, while the components would be assembled to complete some special needed functions.
Raw materials were normally heavy and hard to delivery, so the VMC usually got them from the agents in or near their city.
Where the places and transitions were descripted as Table 1 and Table 2: a) Places: Table 1 Description of places P1 Ready for production P2 No need to design, ready to procure raw materials and components P3 Need to design,be ready to design P4 Components made by oneself,be ready to procure raw materials P5 Component out purchase,be ready to procure components P6 Raw materials are arriving,wait the machining P7 Components are completely manufacture,wait to assemble P8 Outsourcing is arrive,wait to assemble P9 products are ready, wait to check and accept P10 Not up to standard P11 Up to standard and store b) Transitions: Table 2 Description of transitions t1 Whether need to be redesign t2 Design t3 Procure planning t4 Procure raw materials t5 Procure components t6 Manufacturing t7 Assembling t8 Check When the VMC received a customized requirement, we can say the place P1 received the token (>0).
Acknowledgment This research is sponsored by Science and Technology Bureau of Sichuan Province, grants No. 2009GZ0159.
Journal of Integrative Bioinformatics Vol. 7 (2010), p. 13-26 [5] Zhou XJ, Zhang SS, Cao J.
Raw materials were normally heavy and hard to delivery, so the VMC usually got them from the agents in or near their city.
Where the places and transitions were descripted as Table 1 and Table 2: a) Places: Table 1 Description of places P1 Ready for production P2 No need to design, ready to procure raw materials and components P3 Need to design,be ready to design P4 Components made by oneself,be ready to procure raw materials P5 Component out purchase,be ready to procure components P6 Raw materials are arriving,wait the machining P7 Components are completely manufacture,wait to assemble P8 Outsourcing is arrive,wait to assemble P9 products are ready, wait to check and accept P10 Not up to standard P11 Up to standard and store b) Transitions: Table 2 Description of transitions t1 Whether need to be redesign t2 Design t3 Procure planning t4 Procure raw materials t5 Procure components t6 Manufacturing t7 Assembling t8 Check When the VMC received a customized requirement, we can say the place P1 received the token (>0).
Acknowledgment This research is sponsored by Science and Technology Bureau of Sichuan Province, grants No. 2009GZ0159.
Journal of Integrative Bioinformatics Vol. 7 (2010), p. 13-26 [5] Zhou XJ, Zhang SS, Cao J.
Online since: July 2017
Authors: Roman Evgenyevich Novikov, Victor Georgievich Shmorgun, Dmitriy V. Pronichev, Leonid Moiseevich Gurevich
Materials and Methods
3D simulation of deformation and failure of the cylindrical sample under compression was carried out using SIMULIA/Abaqus software package by Mises model.
A computational constitutive model for brittle materials subjected to large strains, high strain rates and high pressure.
ShockWave and High Strain Rate Phenomena in Materials, N.Y.: AIP Press (1992) -1075 p
A computational investigation, AIMS Materials Science 3(3) (2016) 686-721
Journal de Physique IV 07(C3) (1997) 593-597.
A computational constitutive model for brittle materials subjected to large strains, high strain rates and high pressure.
ShockWave and High Strain Rate Phenomena in Materials, N.Y.: AIP Press (1992) -1075 p
A computational investigation, AIMS Materials Science 3(3) (2016) 686-721
Journal de Physique IV 07(C3) (1997) 593-597.