Pore相关论文
采用激光-电阻复合焊接LF6铝合金,对焊接特性进行研究。通过激光和电阻热源相互作用,接头熔深和焊缝面积显著增加,实现了在小功率......
Effect of alternating ultrasonic frequency electric signal on the distribution of pore in aluminum a
The application of ultrasonic vibration in the welding process can effectively suppress the pore defects of the weld. Th......
Lithofacies and Pore Structure of Fine-grained Sedimentary Rocks of Qing-1 Member of Cretaceous in t
Fine-grained sedimentary rocks often contain hydrocarbon and mineral resources.Compared with coarse-grained sedimentary ......
Urgently reveal longly hidden toxicant in a familiar fabrication process of biomass-derived environm
Biomass-derived N-doped carbon(BNC)is an important environmental material and widely used in the fields of water purific......
Refractory dissolved organic matter (DOM) from landfill leachate treatment plant was with high dissolved organic carbon ......
Presented here is the influence of membrane pore size and dissolved organic matters on the diffusion coefficient (D) of ......
SiO2薄膜是光学薄膜领域内常用的重要低折射率材料之一.在文中研究中,通过测量薄膜的椭偏参数,使用非线性最小二乘法反演计算获得......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Types and Characteristics of the Lower Silurian Shale Gas Reservoirs in and Around the Sichuan Basin
This study analyzed the characteristics and types of the Lower Silurian shale gas reservoirs in and around Sichuan Basin......
Iron Isotope Compositions of Natural River and Lake Samples in the Karst Area,Guizhou Province,South
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Titanium alloy lap joints were performed by combined laser welding and resistance seam welding process. The welding char......
Anthracite in Jincheng is a highly metamorphic coal and its system of fissures and pores is differentfrom that of low an......
The microstructure characteristic and formation mechanism of the crackfree and ablation-resistant TaC coating deposited ......
研究了商用活性炭作为电极的双电层电容器在水系和有机系电解液中的电容和活性炭孔结构的关系.水系电解液采用1 mol/L的H2SO4溶液......
着重分析了材料的显微结构对材料导热系数的影响:高孔隙率减弱固相传热作用从而使材料的导热系数减小,但是,高孔隙的也增大辐射传......
采用市政污泥为原材料烧制污泥灰,并将污泥灰作为改良添加剂对传统填埋场压实黏土衬垫系统进行改性,以达到实现污泥资源化利用以及......
Iron Isotope Compositions of Natural River and Lake Samples in the Karst Area,Guizhou Province,South
To better understand the Fe isotope characteristics of natural samples in the Karst area, the Fe isotope compositions of......
Evolution of distribution and content of water in cement paste by low field nuclear magnetic resonan
...
With the TEM and physical gas adsorption techniques, porous properties of nano-fibriform silica (MLD: 92.73 %) from natu......
对某管道对接环焊缝进行X射线检测时,发现环焊缝附近管体部位存在多个密集性圆孔缺陷。为了确定这些圆孔缺陷形成的原因,对缺陷钢......
根据Furnas模型理论,研究了两种粒径颗粒的级配对SiC陶瓷膜孔径大小及其纯水通量的影响。研究结果表明,细颗粒含量≤40%时,随着细......
The effect of carbonation on the chloride resistance of low-carbon steel and two Cr-bearing alloy steels in simulated co......
利用超声衰减法检测复合材料孔隙率得到了广泛应用,但该方法的理论分析与实测结果只适用于特定频率或特定孔隙率范围.原因之一是理......
强降雨作用下排土场非饱和带中的孔隙气压力会阻碍散土体的雨水入渗,从而进一步影响排土场的安全稳定.然而传统分析方法往往将孔隙......
为研究回采工作面前方不同支承压力区煤体在循环外载的扰动下孔隙流体对煤岩动力灾害孕育的力学作用机制,开展了不同孔隙压力(1,3......
为研究玻璃粉对聚硅氮烷陶瓷涂层结构的影响,采用热重、傅里叶红外光谱等方法对聚硅氮烷及聚硅氮烷/玻璃粉混合物的热解转化过程进......
为研究CH4在高、中、低阶3种煤样(无烟煤、焦煤、长焰煤)中的吸附特性及分布规律,采用低场核磁共振技术在不同吸附时间、不同压力......
孔隙尺度的喷射流流动是引起地震波速度频散和衰减的重要机制之一.目前,大多数喷射流模型仅考虑硬孔隙与微裂隙之间的局部流动,而......
【目的】研究105℃恒温干燥115.5 h前后混凝土内部孔隙结构的演化规律,分析混凝土干燥前后孔隙结构对其强度的影响机理,为混凝土干......
The adsorption of methane onto five dry coal samples was measured at 298 K over the pressure range from 0 to 3.5 MPa usi......
对电解镍气孔形成的原因从理论原理和实际生产操作影响因素、电解液中各种离子的浓度、有机物、pH值、电解液温度、电解液循环速度......
砂土在地震荷载作用下极易发生液化,液化土地基对建筑物造成的危害不可忽视,特别地在海洋这种复杂的环境条件下,带来的危害可能更大。......
对工业原料拟薄水铝石进行改性研究,通过拟薄水铝石中加入表面活性剂十二烷基硫酸钠,制备出孔径集中分布在中孔范围的中孔氧化铝,并对......
通过将聚乙二醇(PEG)直接引入MCM-41分子筛合成模板剂十六烷基三甲基溴化铵溶液中,经脱洗和焙烧处理得到厚孔壁有序介孔材料。选用X射......
采用低压化学气相沉积(LPCVD)法制备了具有热解碳界面层的2.5维SiC/SiC复合材料。研究了残余孔洞及热解碳界面层厚度对材料力学性能......
微观结构,磨擦并且穿石墨预先形成 andgraphite/antimony composites 的行为基于水动力学的过滤理论被分析调查在过滤网络和物理性......
以PBX9404炸药为研究对象,建立了炸药颗粒的细观数值模型,得到了炸药颗粒的压强、温度等物理量沿径向分布关系.从数值模拟可以看出,炸......
库水位周期性变化将改变原有水一边坡作用条件。结合三峡五尺坝库岸型斜坡地质条件,探讨了五尺坝滑坡成因机制,基于滑坡地质调查及变......
气缸套中有气孔存在。研究了树脂加入量和树脂配比、浇注系统结构和浇注温度对气缸套气孔率的影响。根据研究结果,采取了有效的措施......
介绍了铁型覆砂铸造工艺的特点,并对曲轴料废率高的问题进行了分析。根据各种缺陷的产生原因,采取不同的改进对策,如对浇注系统进行优......
针对含孔洞镁合金材料的宏观力学性能、变形破坏机理,采用多尺度方法建立了准确的镁合金体胞有限元模型,并利用所发展的多尺度本构模......
以硅溶胶为模板剂、以葡萄糖为炭源,采用模板法制备了超级电容器中孔炭电极材料(SMC).采用液氮吸附等温线对其孔结构进行了表征,考......
为解决浸出矿堆渗透性差、浸出率低的问题,引入激波管试验,并结合渗流力学原理、CT扫描等手段考察应力波改善堆浸渗透性的效果,采......
以渝东南綦江、南川、石柱及涪陵的龙马溪组下部页岩为例,通过X射线衍射、氩离子抛光-场发射扫描电镜、TOC、脆性力学、高压压汞实......
软粘土地基在大面积堆载作用下会产生大量沉降,并影响区域内桩基和邻近桩基的正常工作.采用有限元方法分别研究大面积堆载作用下负摩......
从煤储层双孔隙系统出发探讨了介质对煤层气扩散运移的制约关系及程度。以沁水盆地为例,分析了孔隙系统和裂隙系统在煤层气运移过程......
采用XRD、SEM、DSC等分析测试方法,研究原位法低温合成MgB2的孔隙形成机制。结果表明,高能球磨后B小颗粒镶嵌在Mg大颗粒上,热处理时Mg......
Determining the soil-water retention curve using mercury intrusion porosimetry test in consideration
It is well-known that a close link exists between soil-water retention curve(SWRC)and pore size distribution(PSD).Theore......