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The results show that the glass-ceramics with fibroid structure is produced after definite heat treatment, the main crystallization phase is hedenbergite and anorthite is the minor crystallization phase. The optimal process of heat treatment shows as follows: the nucleation temperature is 850 ℃ and hold time is 100 min, and the crystallization temperature is 980 ℃ and hold time is 80 min. With increasing heat treatment temperature, the FT-IR absorption bands appear obvious split, the aluminum-oxide polyhedron in the glass network changes from [AlO4] to [AlO6]. The titanium ion in the glass network gradually transforms to the 6-coordinated, moreover forms minicrystal of MgTi2O5 and Fe2TiO4 which provides the position of heterogeneous nucleation for the growth of crystal.

结果表明:在一定的热处理条件下可以以基础玻璃制备出主晶相为钙铁透辉石,次晶相为钙长石的纤维状结构的微晶玻璃;最佳的热处理工艺为:850 ℃核化100 min,980 ℃晶化80 min;随着热处理温度的升高,红外吸收带发生明显的分裂;玻璃结构中的[AlO4]向[AlO6]转化;网络结构中的钛离子逐渐转变为六配位,形成微晶相——钛酸镁和钛铁晶石,为晶体的生长提供非均匀形核位置。

Based on the non-isothermal transformation theory and non-steady state nucleation theory, a new method for calculating the continuous cooling transformation curve and the critical cooling rate of bulk metallic glass alloys is put forward in this paper.

在非等温转变理论以及非稳态形核理论基础上提出了计算大块非晶合金连续冷却转变曲线和临界冷却速率的新模型,以用于评估合金的非晶形成能力。

Forms of soil aluminum extracted by oxalate,DCB,and citratesolutions sequentially were noncrystalline.

连续提取中,它所提取的铝不包括交换性铝。3)草酸铵、DCB和柠檬酸钠连续提取的土壤铝同为非晶形铝。

The measurement of 1/f noise in amorphous, microcrystalline and polymorphous silicon film was performanced with a self-design semiconductor system.

研究不同厚度的非晶、微晶和多形硅三种氢化硅薄膜的热导率结果表明微晶硅薄膜的晶化增大了薄膜的热导率。

The crystal-lization of this amorphous alloy is a multi-stage continuous nucleation up to saturation process. The local crystallization energy decreases gradually indicating that the thermal stability of the residual amorphous matrix becomes weak at the steady crystallization stage, which is ascribed to the diffusion of boron atoms at elevated temperatures.

进一步研究发现,该非晶合金的晶化为多阶段的连续形核直至饱和的过程;当进入稳定晶化阶段时,剩余非晶的局域晶化激活能逐渐下降,非晶基体的热稳定性降低,这是由B原子的高温扩散导致的。

The resistivity, squared resistance and temperature coefficient of resistance in hydrogenated silicon film decrease with the increasing of boron doping concentration.

搭建了半导体噪声测试系统,对非晶、微晶和多形三种氢化硅薄膜的1/f噪声测试分析说明薄膜的晶化使得薄膜结构的有序度更高,晶化降低了薄膜的1/f噪声。

The specific heat of the emeraldine base form of polyaniline and the emeradine salt of polyaniline has been measured at temperatures between 1.8 and 45K. The experimental results have been interpreted in terms of the contributions from both the crystalline and the amorphous phases characterizing the polymer.

我们测量了聚苯胺及其掺杂盐酸后在1.8K至45K的热容,利用声子-分形子模型来处理非晶态对比热的贡献,对获得的数据进行处理,发现EB和ES的比热数据均不符合德拜理论,超出德拜模型的比热来源于非晶态的贡献。

It is uniphase and has amorphous structure.

非晶态合金在原子排布上完全不同于晶态金属,它没有晶粒和晶界,是单相无定形结构,没有像晶体那样的结构缺陷,如晶界、孪晶、位错、层错等。

The result is that the crystal structure of the sample irradiated at the dose of 1×10^5 Gy is of an obvious damage while the structure of the unirradiated sample is crystal band.

结果表明,辐照前聚四氟乙烯样品的表面是规则的带状晶形结构,经1×10^5Gy辐照后样品的晶状结构遭到了明显的破坏,向非晶态转变显著。

The analysis of polymer structure indicates that the non-crystalline phase is the majority of the agglomerate structure and the crystalline phase is the minority, the highest crystal value only reaches the level of 0.1646;There is a definite interactionadditives and PVA, which not only reduces the crystal value of ASPE to make amorphous areas enlarge but also improve the ability of segmental motion by destroying the well-regulated and orderly character of polymer chain, meanwhile restricts the mobility of potassium cation and enhances the anionic transference number of hydroxide ions, all these improve the ionic conductivity;The ionic conductivity occurs essentially within the amorphous phase of the ASPE;The structure of ASPE doesnt change in the range of our test temperature, this means, the temperature only takes effect on degradation of complex in certain compositions, ionic mobility and segmental motions of the polymer chain.

聚合物结构分析表明:碱性固体聚合物电解质中凝聚态结构以非晶态为主,仅有少量的晶态,结晶度最大为0.1646;添加的各组分与PVA之间都有一定的相互作用,这种作用不仅破坏了聚合物链段的规整性,能够降低聚合物的结晶度,增大无定形区域,提高链段运动的能力,同时这种作用限制K~+离子的运动,提高OH~-的迁移率,从而提高离子电导率;碱性聚合物电解质的离子传导主要发生在无定形区;在本实验测试离子电导率温度范围内,聚合物内部的结构不会发生变化,即温度只会影响电解质内部络合物解离程度和载流子迁移以及聚合物链段运动的情况。

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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。

This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.

这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。