由此发现过度加长烧结时间有加速劣化的趋势。
Accordingly, the degree of degradation is observed to enhance if the period of the sintering process is too long.
分别研究了一次颗粒尺寸、烧结时间对于二次造粒的影响。
The influence of the primary particle's size and the sintering time on the secondary particle was investigated.
适当提高烧结温度和延长烧结时间可以提高材料的热导率。
Proper sintering temperature and sintering time can contribute to the improvement of the alloy thermal properties.
研究了其力学性能与添加剂用量、烧结温度、烧结时间的关系。
The effect of additive, sinter temperature and sinter time to the mechanic characters were studied.
研究了钾钙肥生产的工艺参数(原料配比、烧结温度及烧结时间)。
A study is made of the process parameters in the production of a potassium calcium fertilizer, such as the proportion of raw materials, sintering temperature and duration of sintering.
研究表明减慢升温速率、延长烧结时间、提高烧结温度可增加光透过率。
With the slow of heat rate, prolong of soaking time and enhanced sintered temperature, the maximum transmittance was increased.
热压烧结可以缩短烧结时间，有利于获得晶粒保持纳米尺度的烧结体材料。
Hot pressed sintering can shorten sintering time and be beneficial to attain nano grain size sintering materials.
通过优化烧结时间和烧结温度等工艺参数，铬环靶材的烧结成本大大降低。
Through optimizing the process parameters including sintering time and sintering temperatures, the sintering costs of ring Cr-target are decreased greatly.
分析了高温烧结时间对流延pzt厚膜品质的影响，确定了最优高温烧结时间。
The influence of the sintering time to the tape casting PZT thick film quality is analyzed and the optimum sintering time is concluded. The silicon based PZT thick film technology int...
进一步延长或缩短脉冲电流烧结时间，烧结体的密度、硬度和弯曲强度反而下降。
With prolonged or shortened pulse electrical current sintering time, the density, hardness and bend toughness of the sintered materials decreased.
结果表明，微波等离子体烧结技术与常规法相比，其烧结时间明显缩短，性能有所改善。
The result indicates that the microwave plasma sintering can short the sintering time and improve the properties of CaZrO3 ceramics as compared with the routine methods.
对烧结温度、烧结时间等工艺参数对材料力学性能、微观结构和致密度的影响进行了分析。
The influence of sintering temperature and holding time on the density, micro-structure and mechanical properties of the ceramic tool materials are studied.
电火花烧结技术是一种新型的快速烧结技术。具有升温速度快、烧结时间短、效率高等特点。
Spark plasma sintering (SPS) is a type of novel fast sintering technology, which is characterized by high heating rate, short sintering period and high efficiency.
进行了三组实验以观察成分、预烧结制度、铁粉颗粒大小，压制压力，烧结时间和热压的作用。
Three series of experiments were carried out to observe the effects of composition, presintering schedule, particle size of fe powders, compacting pressure, sintering time and hot-pressing.
结果表明，延长烧结时间或用湿化学法制得的粉末制备样品，其均匀性好，仅表现出体的超导电性。
The results indicated that the samples fabricated by wet -chemical method or by longer sintering time had better homogeneity and showed bulk superconductivity.
欲获得纳米尺度晶粒的烧结体材料，不仅需要采用远低于其常规的烧结温度，对烧结时间亦应严格限制。
In order to attain nano grain size sintering materials, we must control strictly not only sintering temperature but also sintering time.
并对制备过程中的压制压力、烧结温度和烧结时间等工艺参数对材料密度、硬度和组织的影响进行了研究。
We studied the effect of suppress pressure, sinter temperature and sinter times on density, hardness and structure of the materials in the course of preparation.
利用该方法制造多孔结构时，由于各份粉末的粒径大小及其所占比例较为明确，使烧结时所需温度及烧结时间较易控制。
With said invention, since the grain diameters and ratios of different powder deals are clear, the temperature and time of sintering can be controlled easily.
由于超细钼粉低温活化烧结特性，在烧结过程中降低烧结温度，减少烧结时间，有效地提高钼板坯的晶粒数，同时降低了车间的生产成本。
The lower sintering temperatures and shorter sintering time are used in the sintering process for fine molybdenum powder sintering characteristics of low-temperature activation.
该产品具有良好的高温流动性，较短的硬化时间，较高的烧结强度优质的耐侵蚀性能。
It has a good high tenperature flow ability short setting time, rignersintered strcngth and high corrosion resistance.
采用正交设计和方差分析的方法研究了热压烧结温度、压力、时间对该砂轮性能的影响。
The effect of hot pressing sintering temperature, pressure and time on its properties are investigated by means of orthogonality rejection and variance analysis.
随烧结温度的增加与时间的延长，多孔钛的孔隙尺寸和孔隙度随之减小，孔隙形状从不规则向规则球形转变。
With increasing sintering temperature and time, the pore size and porosity decrease, and the shape of the pore turns into sphere.
研究了化学反应时间与烧结温度对HAP的结晶度和颗粒均匀性的影响规律。
The effects of the reaction time, the sintering temperature on the crystal morphology of HAP and homogeneity were investigated.
高的烧结温度和长的保温时间使结晶更加充分，样品致密度更好，但是也造成偏离化学计量比的加剧。
High sintering temperature and long maintaining time lead to the sufficient crystallization and the full densification, but result in the worsening of the deviation from the stoichiometry.
研究了原料粉末性能、烧结温度和时间、热处理的工艺参数对高密度钨合金的塑性的影响。
The effect of the performance of raw powder and process parameter such as sintering time & temperature , heat treatment time & temperature on the plastication of tungsten alloys has been studied.
研究了球磨时间、碳含量、抑制剂以及烧结对超细硬质合金性能的影响。
It is studied that milling time, carbon content, inhibitor and sintering effect on properties of the submicron cemented carbides.
对烧成过程（预烧温度、烧结温度及保温时间、降温方式）及预处理工艺进行了研究。
The process conditions, including presintering temperature, sintering temperature and time, cooling mode and pretreatment were studied.
对烧成过程（预烧温度、烧结温度及保温时间、降温方式）及预处理工艺进行了研究。
The process conditions, including presintering temperature, sintering temperature and time, cooling mode and pretreatment were studied.
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