查询词典 calcined

The cubic nanopowder of barium titanate was obtained when the precipitate was washed, stoved, and then calcined at 600 ℃ for 1 h.

将该前驱体沉淀洗涤、烘干，600℃煅烧1h，可制得立方相的纳米钛酸钡粉体。

The experimental results indicate that the calcined powders can be sintered to nearly fully dense at a lower temperature as compared with that from solgel prepared powder mixtures.

结果表明，与溶胶-凝胶法制备的粉体相比，包裹粉体可以在较低的温度下达到致密化。

By testing hydration rate and hydration temperature at different times,the effect of the retarders on the hydration process of calcined gypsum was studied,and by analyzing morphology and pore structure,the effect of the retarders on the microstructure of gypsum was also studied.

测定柠檬酸、聚合磷酸钠、骨胶3类缓凝剂对石膏性能的影响，通过不同水化时间的水化率和水化温度测定，研究了缓凝剂对建筑石膏水化过程的影响，采用SEM形貌分析和压汞法孔结构分析研究缓凝剂对石膏硬化体微结构的影响。

The characterization results showed that the calcined sample in 300 ℃ was spongy structure tin dioxide with meso-porosity which was formed by accumulating nanoparticles (particle size: ca 5 nm).

结果表明，300℃焙烧处理后的样品由粒径约为5 nm的纳米粒子堆积而形成海绵状结构，其中孔的尺寸范围在2-8 nm，样品比表面积达到了134 m2·g-1。

In this work,α-Al〓O〓, form the high temperature calcined product of Al 〓 by Debye method, was used as raw material to fabricate alumina ceramics. The seed crystal was added by ball milling of pure α-Al〓O〓 and the alumina ceramics with elongated grains has been experimentally fabricated.

本研究通过拜耳法制备的工业氢氧化铝粉经高温煅烧过程分解转相得到高温稳定的α-氧化铝粉作为制备氧化铝陶瓷的原料，利用球磨过程的磨耗向氢氧化铝粉中引入高纯氧化铝作为晶种，制备出了具有长柱状晶的氧化铝陶瓷。

In this paper, calcium sulfate whiskers were calcined at different temperature and tested by XRD.

不同温度下煅烧硫酸钙晶须，并用XRD测定煅烧产物的结构，发现其晶型和晶格结构均有变化，600℃左右煅烧的硫酸钙晶须晶格结构最为致密。

In pelletization process, slaked lime, clinker and calcined gypsum can be used as additives of which the hydration products of clinker have a binding effect of gypsum grains and a seed crystal effect for cement hydration. Thus, this technology is one of the best pelletization technologies known so far.

以熟石灰、水泥熟料、熟石膏为成粒助剂的成粒工艺，将磷石膏中和预处理统一于成粒过程中，熟料水化产物既对石膏颗粒起固化作用，又对水泥水化产生晶种效应，是国内外最好的成粒工艺技术之一。

Adsorption of aqueous methyl orange on synthetic hydrotalcites with different layer charges and their calcined forms was investigated.

目前，阳离子和非离子型水体环境污染的修复已经有了较长的研究历史和相当的理论高度[1，2]。

I plant the production of calcined petroleum coke, petroleum coke used for high-quality raw materials delayed by 9-storey, six fires burning tank inverse Calciner, the high temperature of 1280-1300 degrees from dry distillation.

我厂生产的煅烧石油焦采用优质延迟石油焦为原料，通过九层火道六罐式逆烧煅烧炉，经1280-1300摄氏度的高温干馏而成。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。