铬绿结晶釉呈色机理的研究

主要探讨基础釉化学组成中各氧化物对结晶釉呈色的影响。结果表明,其中氧化铝、氧化锌、氧化铁对铬离子呈色有较大的影响,铬绿结晶釉呈色机理为离子着色。     

陶瓷色料在滑石质日用细瓷坯料中的应用研究

研究了陶瓷色料在滑石质日用细瓷坯料中的发色问题,结果发现:在高镁的坯体中,铬绿和棕色色料变色,铬锡红色料褪色,含钴的蓝色料色调明显偏红为紫红色,其余色料发色基本正常。     

色釉基础釉的研究与探讨

根据笔者的实际经验,本文举例介绍了日用陶瓷专用色料及基础釉的配方,包括黑色专用釉、桃红专用釉、铬绿、孔雀绿专用釉、棕色专用釉,供同行参考。     

溶胶-凝胶法制备新型无毒铬绿粉彩颜料的研究

以正硅酸乙酯和氯化铬为原料,采用溶胶-凝胶法制备了包裹型铬绿粉彩颜料,探讨了不同铬硅摩尔比(Cr/Si)、煅烧合成温度、以及色料添加量等因素对制品呈色的影响。结果表明,在Cr/Si摩尔比为0.15,煅烧合成温度为850℃时获得呈现鲜艳翠绿色的包裹铬绿色料。且其合成粉彩颜料与无铅熔剂的最佳质量比为1∶6.7。XRD及TEM结果亦表明,包裹铬绿色料的晶相为Cr2O3S,iO2呈无定形态。     

不同煅烧工艺对铬绿颜料性能的影响研究

采用静态焙烧和动态煅烧工艺制备的氧化铬绿颜料,在产品应用过程表现出较大的差异。研究探讨了两种工艺对铬绿产品部分指标的影响,在相同的煅烧温度下,考察了铬绿的吸油量、粒度分布、表观形貌、色差等指标,结果表明静态煅烧工艺制备的铬绿颜料较动态煅烧工艺具有明显的应用优势。     

中温乳浊颜色釉的研制

采用钾长石、高岭土、石英、骨灰、滑石、方解石、锆英石等常用原料,通过大量实验确定了基础乳浊釉的配方,添加镨黄、铬绿、钴蓝、包裹红这四种色料成功制备了较好的乳浊色釉.结果表明,钴蓝、铬绿、镨黄色料适应磷乳浊釉,包裹红色料则适应锆乳浊釉;钴蓝最佳加入量为6％,铬绿、包裹红为8～10％,镨黄为10％.     

铬绿（Cr_2O_3）的制作与使用体会

铬绿（Ｃｒ_２Ｏ_３）的制作与使用体会余福东（湖北通城彩轴砖厂０５００００）铬绿（Ｃｒ２Ｏ３）作为一种化工原料，在陶瓷行业的应用较为广泛，制作多种颜料需用它，同时也可直接作绿色颜料使用，且着色力很强。铬绿（Ｃｒ２Ｏ３）的制作，方法很多，但最简单实用的方...     

锡基含铬陶瓷颜料呈色性能的研究

研究了三种锡基含铬陶瓷颜料的呈色,确定了载色体矿物组成与颜料呈色性能之间的关系,讨论了紫色、桃红色、紫红色颜料的载色体矿物组成范围。     

彩色建筑节能涂料的制备和性能研究

针对目前市面上应用的建筑节能涂料多以白色和浅色为主,装饰性不佳,分别以钛铬黄和铁黄、钴绿和铬绿2种黄、绿色系的彩色颜料为反射颜料,制备了2种彩色建筑节能涂料,并探究隔热性能较好的涂层对应的颜料种类及其掺量。采用X射线衍射仪、紫外/可见/近红外分光光度计、精密色差仪对颜料和涂层性能进行表征,用自制隔热性能测试装置测量涂层的隔热性能。结果表明:相比于铁黄和铬绿,钛铬黄和钴绿2种颜料的近红外平均反射率更高;当掺量为20%时,钛铬黄和铬绿涂层近红外平均反射率最大分别为68.69%和48.57%,红外发射率分别为0.93和0.90,此时2种涂层试板的平衡温度较空白板分别低17.8℃和9.9℃。     

铬锡红釉呈色机理的研究

采用 Ｘ Ｒ Ｄ 可见光分光光度法和电子探针（ Ｅ Ｐ Ｍ Ａ） ,研究了铬锡红釉的呈色机理,讨论了基础釉的组成和烧成制度对铬锡红釉的呈色品位和呈色稳定性的影响。     

Effect of Green Density on the Subsequent Densification and Grain Growth of Ultrafine SnO2 Powder during Isochronal Sintering

An ultrafine powder of SnO₂ has been synthesized by a gas flow condensation method. The average particle size of the powder was about 40 nm. The effect of the green density on the subsequent densification and grain growth of the ultrafine SnO₂ during sintering has been studied. A loose green compact consolidated under 500 MPa (green MC) showed rapid densification as well as rapid grain growth at relatively low sintering temperatures. A dense green compact fabricated under 4.5 GPa (green GC) exhibited a slow increase in the density and almost no grain growth even at high sintering temperatures.     

硫酸法钛白副产物绿矾的资源化利用现状

绿矾是硫酸法钛白粉生产中排放出的一种固体副产物。仅在2017年中国副产绿矾就超过700万t,且每年仍以10%的速度增长,这严重制约着硫酸法钛白行业可持续发展。目前,仅有很少部分绿矾得到回收利用,其余以堆存方式处置,这不仅造成硫铁资源的浪费,而且还引起严重的环境污染。为了提高副产物绿矾的利用价值,国内外学者对绿矾资源化利用途径做了大量实验研究。通过对近几年副产物绿矾的资源化利用现状（包括处理废水、农业肥料、颜料、电极材料、铁酸盐、纳米氧化铁及掺烧制酸等方面）的分析,提出了制备纳米氧化铁是副产物绿矾资源化利用的可行性途径。     

Effects of Powder Processing on the Green Compacts of High-Purity BaTiO3

Two processing methods have been used to prepare different green compacts of high-purity BaTiO₃. The substructures of agglomerates have been examined by SEM, and the strength of the agglomerates was interpreted in a plot of the logarithm of the pressure versus the relative density, which is consistent with the structures of cut surfaces of green compacts. The Hg-penetration results have been used to compare the uniformity of the powder compacts. The wer method (wet milling and subsequent wet pressing) was used to produce uniform green compacts.     

瓦斯绿色开采技术的实现及其资源化

提出了瓦斯绿色开采的必要性,在煤矿绿色开采的基础上阐述了瓦斯绿色开采的概念。详细论述了实现瓦斯绿色开采的途径和瓦斯的资源化,开创了变瓦斯“杀手”为“帮手”的新途径,实现了良好的经济效益、安全效益、社会效益和环境效益。     

3D-customized thin-walled ceramic mouldings produced by deep drawing of green tapes

Thin-walled 3D-customized ceramic components can be used, e.g. for inert and thermal resistant housings as well as special surface structured kiln furniture. For manufacturing such components, deep drawing of ceramic green tapes has been used. The technology has been almost not applied for processing of ceramic green tapes. A new approach was developed to realize a homogenous ceramic particle packing and hence uniform green density within a deep drawn green tape. After debinding and sintering, defect-free model structures with a dense microstructure (density > 99%) were achieved. Within this study, the deep drawing of ceramic green tapes by using a new approach was investigated. The developed approach brings several beneficial properties together, e.g. a reproducible form deviation and more importantly a homogeneous particle distribution allowing homogeneous and dense structures. With this results, the transformation of non-complex and cheap ceramic green tapes to 3D-customized and near-net-shape thin-walled mouldings becomes possible.     

绿色化学工程与工艺对化学工业节能的促进性分析

近几年我国经济水平不断发展,科学技术得以广泛应用,随之而来的是由于化学发展而引起的环境污染问题。通过分析化学研究过程中发生的化学反应以及现象都是未知性的,所以在化学反应中可能会对人类以及环境产生有害的物质,要想有效减少危害物质的发生,必须要发展绿色化学工程以及相关工艺,这也是当前化学研究工作者急需解决的重点问题。所以必须要构建绿色化学,能够从源头上控制化学反应中的原料,使用应用无害反应物以及溶剂、催化剂等,能够有效减少对不可再生资源的使用量,通过提出绿色化学工程概念,一定程度上的缓解了化工材料对于生态环境的污染,切实提高了化学工业的能源利用效率。分析了探究绿色工艺以及绿色化学的主要操作工艺,并提出绿色化学工程与工艺对节能降耗产生的积极作用。     

新型陶瓷坯体增强剂的应用研究

主要研究了自制的以木质素为主要原料的陶瓷坯体增强剂的应用。考察了不同浓度、不同原料的增强剂对泥浆流动性,生坯强度,以及烧成后瓷砖黑心现象的影响。结果表明,自制木质素基的增强剂,引入到建筑陶瓷坯体配方中,不仅可以明显提高生坯强度,而且具有一定的解凝效果,对泥浆流动性影响不大。     

绿色化学的发展趋势

本文通过综合分析1996年至2010年获得绿色化学挑战奖中的"学术奖"项目特点,讨论了绿色化学的发展趋势.对获奖项目的分析表明:催化技术、绿色溶剂、生物技术、原子经济性反应以及可再生能源技术在绿色化学发展中占有重要地位,绿色催化技术领域的学术发展引领着绿色化学发展的主要方向.     

In situ micro-Raman spectroscopy to investigate pitting corrosion product of 1024 mild steel in phosphate and bicarbonate solutions containing chloride and sulfate ions

The nature of the corrosion products generated by localized attack on 1024 mild steel have been investigated in the presence of chloride and/or sulfate ions in bicarbonate and phosphate aqueous solutions. A spectroelectrochemical cell was used for in situ measurements of the Raman spectra of the corrosion products generated during pitting. These products were identified as the so-called green rust compounds. The assignment of the hydroxyl groups in green rust is confirmed by isotopic substitution. The composition of the green rust generated in bicarbonate or phosphate solution containing chloride and/or sulfate ions has been determined. A correlation between the green rust composition and the electrochemical behaviour after the initiation of pitting has been noted and discussed.