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cordierite n.【礦物】堇青石。

cordiform

The results of mas nmr analysis indicate that the crystalline structure of cordierite was considerably changed by the incorporation of the zn2 ions or ti “ “ ions , leading to the partial transition from a - cordierite with a hexagonal crystalline structure to p - cordierite with a orthorhombic crystalline structure 2al2o3 ? 4 . 6sio2堇青石固溶體樣品的結構。 masnmr研究結果表明, zn2 + 、 ti4 -的固溶對樣品中的堇青石結構具有重要的影響,使得樣品中的堇青石由六方結構-堇青石向四方結構-堇青石轉變。

The development of cordierite based infrared radiation materials with the substitution of partial mg2 + ions by transitional metal ions has been presented , and the influences and their mechanisms of the substitution of partial mg2 ions by transitional metal ions , synthesis temperatures and particle size on the infrared radiation materials have been investigated , which aims at promoting the application of the infrared radiation materials in the inner wall coating 本研究研制了過渡金屬離子固溶堇青石體系紅外輻射材料,著重研究了過渡金屬離子的種類與含量、合成溫度、顆粒粒度對材料紅外輻射性能的影響及其作用機制,其目的在于為堇青石固溶體系紅外輻射材料在內墻涂料中的應用打下基礎。

The results of xrd , ir and infrared radiation property measurement show that a crystalline structure with the cordierite solid solution as the main phase can be produced when zno or tio2 with relatively low content were introduced , while the infrared radiation properties of the samples were significantly improved compared with that of the sample without introduction of transitional metal oxides Xrd 、 ir和紅外輻射性能的研究結果表明,當zno 、 tio2的含量較低時樣品中形成以堇青石為主體的晶體結構,樣品的紅外輻射性能明顯提高。

Kiln guiding - rail bricks , supporting suspension bricks and ultra - thin extruded batts are recently developed for the phenomenon of pollution and pulverization caused by using insulation bricks or high - temperature refractory wool in the kilns . they are made from cordierite and mullite with a high strength . they can cover the kiln wall structure made of refractory fiber , greatly reduce pollution and pulverization , remarkably save the energy , easy to be constructed on worksite , and the aspect is beautiful and novel . they are ideal material for large - scale shuttle - kiln or computerized puadrate kiln 窯體道軌磚及支撐吊磚和超薄中空板是針對目前窯爐采用傳統耐火材料在使用過程中由于組多原因造成落臟或粉化現象而開發生產;它是堇青石-莫來石材料制造而成,強度大,熱穩定性佳、覆蓋耐火纖維制品組成窯爐墻體結構,它能大大減輕落臟與粉化現象,節能效果十分明顯、施工方便、整體美觀新超是高級大型梭式或電腦方窯等窯爐的理想材料。

The main products including the high quality cordierite raw materials and low - al2o3 mullite raw materials for manufacture of high performance mullite - cordierite kiln furniture , mullite - cordierite extruded batts , flat batts , perforated batts , grooved batts , many kinds of supports etc 主要產品有:高溫合成的低鋁莫來石和堇青石原料,莫來石-堇青石質的中空棚板,平板,多孔板,溝槽板,各種支柱及異型支架等系列窯具。

Mas precursor powders are prepared using aluminium sulfate , colloidal silica , and magnesium nitrate as raw materials via sol - gel methods , dsc - tg and xrd show that the mas precursor powders transform to cordierite completely at 1300 以硫酸鋁、硝酸鎂和硅溶膠為原料,采用溶膠-凝膠法,制得mas先驅體粉末, xrd表明,該粉末經1300的熱處理后,完全轉變為堇青石。

Mas precursor powders were uniaxially pressed at 100 mpa employing a lubricated steel cylindrical mold . after sintering at 1450 for 2 hours , single - phase cordierite ceramic is prepared , and its relative density is 95 . 1 % Mas先驅體粉末在100mpa的軸向壓力下成型后,經1450無壓燒結2小時,得到單相堇青石陶瓷,其致密度達95 . 1 。

Cordierite is mainly used in the production of ceramic kiln furnitures , and also can used as the additive to improve the thermal shock resistance of refractories and ceramic products 主要用于陶瓷窯具的生產,亦可作為改善耐火材料或陶瓷制品抗熱震性能的加入物。

Aim to the shortage of cordierite honeycomb which was used widely , we studied the procession to extruded alumina honeycombs for automotive emissions control in this work 本研究采用現代測試技術如xrd 、 sem 、 epma等對載體及涂層的組成、結構與性能進行了研究。

Cordierite is a kind of superior heat - resistant material melting point can achieve 1400 , and its thermal expansion coefficient is close to zero Cordierite是一種優越的耐熱材料(熔點達1400 )其熱膨脹系數接近于零,因此,可忍受急劇之溫差。

Study on thermal durability and modification mechanism of washcoat for cordierite monolith substrate 堇青石蜂窩陶瓷載體涂層熱穩定性及改性機制研究

Cordierite - mullite kiln furniture 莫來石窯具

We adopt cordierite ceramic to extrat shaping , and process it 采用堇青石( cordierite )陶瓷擠出成型,再加工而成。

The calculation and study of the crystal cell parameters of nano - cordierite 納米級堇青石晶胞參數的計算與研究

Study on synthesis of cordierite by coal - series kaolin 煤系高嶺土合成堇青石工藝研究