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morphology and structure OF TRANSFORMATION PRODUCTS FORMED AT INTERMEDIATE TEMPERATURE IN A Cu-Zn-Al ALLOY

Transactions of Nonferrous Metals Society of China 1992年第2期2卷 51-55页

作者： Lu Wei Jiang Bohong Xu Zuyao Shanghai Jiao Tong University Shanghai 200030China

A TTT diagram for th ie precipitation formed at some intermediate temperatures through cooling from high lemperalure parenl phase in a Cu-27 27Zn-3.73Al allay is established by means of dilatormetric *** morphology and structure of transformation products formed at some intermediate tem peratures isothermally through cooling from high temperature parent phase and up-quenching from DO_(3) parent phase are studied by metallographic.X-ray and electron microscopy *** regions in the two separate C curves are obtained according to different morphology of precipitate:rod-like a,plate-like bainite and a rods,and bainite *** aging makes bainite plate change gradually into a whose lattice parameters are no different from that of a formed equilibriumly from parent *** structure is almost orthorhombic long period structure for bainites formed from B_(2) and DO_(3) parent phase,but monoclinic for martensite from DO_(3).They correspond to the overlapping and separating of(1210)and(2010)diffraction peaks respectively,showing the lower degree of ordering in bainite.

关键词： Cu-Zn-Al alloy transformation at intermediate temperature morphology and structure

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Influence of Konjac Glucomannan on the Crystallization morphology and structure of Calcium Oxalate

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Chinese Journal of Structural Chemistry 2013年第6期32卷 831-838页

作者：王丽霞肖丽霞蔡良根尹娜寇丹丹庞杰 College of Food Science Fujian Agriculture and Forestry University Department of Biology Science and Technology Zhangzhou Normal University College of Food Science and Engineering Yangzhou University

The influence of additive Konjac Glucomannan （KGM） in a variety of con- centrations on the crystallization morphology and structure of calcium oxalate （CaOxa） has been investigated by infrared spectroscopy, scanning electron microscope, X-ray diffraction and so on. The results showed KGM can complex with the Ca^2＋ ions; low concentration KGM prevents CaOxa from aggregating, raises the concentration of ions in the solution, reduces the quantity of crystals and inhibits their growth, and the crystals are round and blunt; while high concentration KGM promotes the growth of crystal, which appears in sheet-like or irregular shape. Only CaOxa monohydrate was observed in a certain system with or without the presence of KGM.

关键词： Konjac Glueomannan (KGM) calcium oxalate (CaOxa) crystallization morphology and structure

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INVESTIGATION OF structure AND PROPERTIES FOR POLYMER SYSTEMS BASED ON DYNAMIC RHEOLOGICAL APPROACHES

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Chinese Journal of Polymer Science 2005年第4期23卷 341-354页

作者：郑强 DepartmentofPolymerScienceandEngineering ZhejiangUniversityHangzhou310027China

The dynamic rheological measurements have been a preferred approach to the characterization of the structure and properties for multi-component or multi-phase polymer systems,due to its sensitive response to changes of structure for these heterogeneous *** the present article,recent progresses in the studies on dynamic rheology for heterogeneous polymer systems including polymeric composites filled with inorganic particles,thermo-oxidized polyolefins,phase- separated polymeric blends and functional polymers with the scaling and percolation behavior are reviewed,mainly depending on the results by the authors' *** means of rheological measurements,not only some new fingerprints responsible for the evolution of morphology and structure concerning these polymer systems are obtained,the corresponding results are also significant for the design and preparation of novel polymer-based composites and functional materials.

关键词： Heterogeneous polymers Dynamic rheological properties Phase-separation morphology and structure Scaling and percolation behavior

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Characteristics of Central Heating Cinder and Its Influence on Soil Properties

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Meteorological and Environmental Research 2022年第2期13卷 78-82,97页

作者： Guoyu GAN Chao LI Xu ZHANG Li YANG Yunfeng CHEN Bo LIU Yanli LI Jifu LI College of Agriculture/Analytical&Testing Center of Agricultural Resources and Environment Yangtze UniversityJingzhou 434025China Jingzhou District Agricultural Science and Technology Service Center Jingzhou 434025China Key Laboratory of Fertilization Utilization of Waste Ministry of Agriculture and Rural AreasWuhan 430070China

[Objective]The research was designed to explore the effect of long-term stacking of solid waste produced in the coal-burning process of central heating enterprises on physical and chemical properties of soil.[Method]This study took the heating enterprises in Shenyang City as the research *** morphological structure and element composition of coal cinder were determined by continuously collecting coal and cinder samples in different *** the same time,the original soil and cinder soil of the stacking site were collected to determine the changes of soil morphological structure,element composition and physical and chemical properties,so as to provide reference for the resource utilization of local cinder waste and the potential pollution risk of the stacking site.[Result]The contents of C,H,O,N,and S non-metallic elements in coal cinder decreased by 69.5%,71.2%,76.0%,74.5%,and 34.6%,respectively when compared with raw coal;while the content of Si increased significantly by 95.7%.The contents of Al,K,and Fe in cinder decreased by 4.3%,60.2%,and 33.3%,respectively,while the contents of Mg and Na increased by 36.1%and 130.9%,*** with the original soil,the contents of C,H,and O in shallow cinder soil and deep cinder soil increased by 126.5%,67.9%,80.93%,and 21.3%,25.0%and 42.3%,*** residual carbon existed in the form of activated *** contents of Mg,Al,K,Na,Ca,and Fe in shallow cinder soil and deep cinder soil increased by 61.6%,5.4%,46.1%,35.8%,32.5%,6.3%and 22.3%,12.3%,12.2%,15.6%,5.8%and 2.8%,respectively compared with the original *** content of heavy metal elements in coal cinder did not reach the detection *** the scanning electron microscope,the raw coal is mainly block structure,while the cinder is honeycombed and porous and dust.[Conclusion]Cinder stacking can significantly improve the content of organic matter and available K in shallow cinder soil,and improve the porosity and permeability of ***

关键词： Central heating Coal cinder Soil properties Element composition morphology and structure

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The Influence of Mechanical and Viscoelastic Factors on structure and Properties for Polymer Systems

The Influence of Mechanical and Viscoelastic Factors on Stru...

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2006年海峡两岸高分子学术研讨会

作者：郑强 Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027

＜正＞The studies on the influence of mechanical and viscoelastic factors on structure and properties for polymer systems have attracted extensive attention of researchers in the polymer science and materials fields over the past decades, due to their great academic interest and increasing technological value. Rheological properties of multi-component/multi-phase polymers are related to their phase structure/ morphology and the interaction of their components, and rheological response can sensitively reflect their changes. However, it is well-known that

关键词： Heterogeneous polymers Dynamic rheological properties Phase Separation morphology and structure Scaling and percolation behavior.

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Relationship between waxy crude viscosities and wax crystal microstructure

Relationship between waxy crude viscosities and wax crystal ...

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The 9th National Conference on Rheology

作者：高鹏张劲军侯磊王海峰 PetroChina Planning & Engineering Institute

＜正＞It is important and profound to quantitatively study the relation between rheoiogy and microstructure for development of the microstructural mechanism of crude oil rheology and even for the waxy crude oil ***,due to the high complexity and irregularity of wax crystal morphology,quantitative characterization is hard to *** has hampered further study on the rbeology—microstructure relationship.A new approach combined the fractal geometry and the stereology theory is presented for quantifying the intricate wax crystal morphology and *** on the characterization,the effects of microstructures and oil composition on the waxy crude viscosities are analyzed quantitatively It further validates the previous qualitative research and enriches understanding into the microstructural mechanism of waxy crude oil rheology.

关键词： waxy crude oil apparent viscosity wax crystal morphology and structure quantitative analysis

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