1,836 Result(s)
within
Zhi-**ong **ao
Metallic Materials
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Article
Comparative investigations among binary molten salt mixtures PbCI2- AgCI, PbCI2- UCI, and PbCI2-KCI using an isopiestic technique
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Article
High-Temperature isopiestic studies on the liquid solutions Hg-Cd-Sn
An improved high-temperature isopiestic technique has been applied to the liquid solutions Hg-Cd-Sn at 600 K. The activities of Hg in the ternary system have been calculated from the measured isothermal-isobar...
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Formation of bainite in ferrous and nonferrous alloys through sympathetic nucleation and ledgewise growth mechanism
The subunits constituting a bainitic sheaf in an Fe-C-Cr-Si alloy were discovered by scanning tunneling microscopy (STM) to consist of sub-subunits, and sub-subunits were also composed of sub-sub-subunits. Det...
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Article
General existence of ledges on α1 plates in Cu-Zn-Al alloys
A transmission electron microscopy (TEM) study was made of the interphase boundary structure between the matrix and α1 plates formed at 250 °C, 300 °C, and 350 °C in three Cu-Zn-Al alloys. The experiments showed ...
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Article
A generation of ultra-high pressure for phase transformation
A new method was devised to generate an ultra-high dynamic pressure for materials synthesis and phase transformation by using the cylindrical explosion. Unlike the ordinary cylindrical method, the specimen is ...
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Article
A general approach for predicting the drawing fracture load and limit drawing ratio of an axisymmetric drawing process
Based on Hill’s theory of plasticity and the Swift diffuse instability criterion, new theoretical models are proposed for predicting the drawing fracture load and limit drawing ratio (LDR) of an axisymmetric c...
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Article
Template effect on structure and morphology of Ni(OH)2 powders prepared by hydro-chemical method
The template effect controlling the structure and morphology of ultrafine particles was described. Ni(OH)2 powders were prepared by NH3 coordination-precipitation method. The effects of SO 4 ...
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Synthesis of lithium-cobalt oxides by sol-gel method and their cathodical discharge behavior at 500 °C
Three kinds of lithium-cobalt oxides with lithium to cobalt atomic ratios of 0.6, 0.8 and 1.0 respectively were prepared using nitrates and citric acid by sol-gel process. During the baking of the dry-gel powd...
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Article
Monitoring and assessing method for blasting vibration on open-pit slope in Hainan Iron Mine
A type of velocity sensor CD-1, an auto-recording instrument on blasting vibration YBJ-1 and a random signal and vibration analysis system (CRAS) were used to monitor the particle vibration induced by blasting...
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Article
Solid-liquid mixed casting of Al-Si alloy
The paper presents a novel material preparation technology—Solid-liquid mixed casting technology. In the technology, large amounts of homogeneous alloy powder or heterogenous powder with perfect wettability ar...
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Article
Location prediction of blind ore-bodies in Shui**gtun Gold Mine, Zhangjiakou, China
By analyzing the metallogenic conditions and prospecting marks of F8 fault belt in Shiu**gtun Gold Mine, the geochemical samples were collected along F8 fault belt and prospecting profile normal to the F8 fault ...
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Article
Application of a novel multilayer spray forming technology in the preparation of large dimension aluminium alloy blanks
Principle of multilayer spray forming and preparation technique of tubes and billets by it were presented and described in the article. The marked characteristic of multilayer spray forming technology is the t...
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Article
SCGM(1,m)c model with time-lag and its application in deformation analysis
Originated in the early 1990s, SCGM(1,m)c model has enjoyed widespread application in the fields of urban planning, society economy prediction and modal control in recent years. However, none of these application...
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Article
Simulation of rock mass balance of two typical altered rocks in Wulong gold deposit of Liaoning, China
Wulong gold deposit hosted in granite and fine-grained diorite dikes, is a typical gold deposit of quartz vein type. Granite and fine-grained diorite dikes in the ore deposit were altered by metallogenic fluid...
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Article
Research on theory and method in parallel designing environment based on coupling
Understanding the relation between multiple agents is very important in develo** a multi-agent system. Two concepts, multi-agent system architecture and multi-agent system architecture prototype are brought ...
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Study on mechanical properties of warm compacted iron-base materials
Mechanical properties of the warm compacted iron-base powder metallurgy materials were compared with those of conventional cold compacted materials. Factors such as compaction temperature, lubricant concentrat...
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Article
Rare earth extraction and separation from mixed bastnaesite-monazite concentrate by stepwise carbochlorination-chemical vapor transport
A stepwise carbochlorination-chemical vapor transport (SC-CVT) process is proposed for the rare earth extraction and separation from a mixed bastnaesite-monazite concentrate based on thermodynamic and kinetic ...
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Article
Effects of carrier gas on densification of porous carbon-carbon composites during chemical vapor infiltration
The densification rate of C/C composites fabricated by directional flow thermal gradient chemical vapor infiltration process from C3H6, C3H6-N2 and C3H6-H2 was investigated respectively. The mechanism on the role...
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Article
Thermodynamic assessment of Au-Zr system
Au-Zr binary system was reassessed by using the calculation phase diagram (CALPHAD) technique based on experimental thermodynamic data and newly reported phase diagrams. The excess Gibbs energies of the three ...
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Article
EZDCP: a new static task scheduling algorithm with edge-zeroing based on dynamic critical paths
A new static task scheduling algorithm named edge-zeroing based on dynamic critical paths is proposed. The main ideas of the algorithm are as follows: firstly suppose that all of the tasks are in different clu...
