查询词典 mullite

A reparing material for reparing the coke oven by spraying the semi-dried it is prepared from the raw Al-Si material chosen from mullite, high-Al alumine, etc.

焦炉修补用半干法喷补料，其组分及组分重量百分比为：铝硅质原料55～78％、结合剂10～25％、烧结剂和可塑剂3～5％、膨胀剂3～7％、Al 2 O 3 微粉或/和SiO 2 微粉5～10％；外加剂加入量为总量的0.1～1.0％。

Single phase mullite were prepared by using mechanochemical method with kaolinite and alumium hydroxide as starting materials.

以高岭土和氢氧化铝为原料，采用机械力化学法制备出了单向莫来石。

The results showed that three reasons caused the failure of the fibre materials:1the fibre materials transforming into powder which was caused by the precipitation of mullite at high temperatures;2cracking and spalling of the refractory coating and refractory fibre felt;3low strength of the refractory fibre flet.

结果表明：硅酸铝质耐火纤维在高温下析出莫来石晶体导致纤维材料的粉化，耐火涂层和耐火纤维毡的开裂、剥离脱落，耐火纤维毡强度很低是导致纤维材料失效的3个主要机理。研究结果为新型耐火材料的研制或改进提供了重要依据。

Their matrix in glass phase, apparently exists newborn mullite phase, it is precisely because of their formation, the crisscross raphides increased structure strength.

它们的基质中，在玻璃相中显然存在着新生的莫来石相，正是由于它们的形成，其交错针晶增大了结构强度。

The main point of this paper lies in the research on the microstructure of the mullite—cordierite sagger, which has been used in the production of Jingdezhen ceramic industry in large quantities for many years, by means of a polarization microscope with ultrathin section together with close connection of the process in the sagger manufacture.

本文主要是利用偏光显微镜和超薄光薄片并紧密结合匣钵的制造工艺，对景德镇市多年来一直在陶瓷生产上大量使用的&莫来石—堇青石质匣钵&进行了显微结构的研究，发现这种匣钵材料的主晶相是堇青石，次晶相是刚玉和莫来石，并发现其中各晶相成团聚状分布；另外在磨制超薄光薄片过程中，发觉其结构较疏松。

Corundum products.corundum-mullite products.high-temperature sagger

刚玉制品、刚玉——莫来石制品、高温匣钵

The composition reaction of mullite 〓. Consumed Al〓O〓 and SiO〓 in this reaction were noncrystal shapless species got in the decomposition reaction of metakaolinite.

扫描电镜形貌分析表明，各焙烧制度下所得到的焙烧产品振磨后其形貌和颗粒大小都很接近，因而不会对溶出脱硅结果产生多大的影响。

Using high alumina mullite as rawmaterial, cement or micro-powder as binding agents, the Hi-Al2O3 castables is one unshaped refractory and has the benefits of high strength,especially under medium temperature, and good thermal shock resistance.

高铝浇注料是以高铝莫来石原料为主，以水泥或微粉为结合剂的不定型产品，具有强度高，特别是中温强度高，热震性好的特点。

Figure 5 and 6 of the comparison, we can find that, in the 3 - B sample for fine powder, including new mullite quantity than A - 11 samples.

由图5和图6的比较可以发现：B-3试样中因细粉量增大，其中新生莫来石量大于A-11试样。

The proper alkaline content was in favor of compressive strength. The chemically combined water of paste without activator decreases with the increase of fly ash content, the content of Ca2 decreases after 28d. The increase extent of chemically combined water of pastes with NaOH is higher than that of without activator, and the paste with Ca2 is the same. The XRD peak of Ca2 of paste without activator is high at early age, and the peak of mullite and quartz has less change along with age. When NaOH is added, the peak of quartz of fly ash has clear drop. The surfaces of fly ash activated has eroded trace at 7 d.

研究结果表明：适量碱的掺入对强度有利；未掺激发剂浆体的化学结合水量随着粉煤灰掺量的增加而减少，Ca2含量在28d后开始下降；掺NaOH浆体的结合水量随龄期增长的幅度比未掺激发剂的浆体的大，而掺Ca：试样变化较小；未掺激发剂的水泥－粉煤灰体系在早期Ca2的峰值较大，且粉煤灰中的莫来石和石英晶体的衍射峰随龄期变化不大；NaOH掺入后，28d时，粉煤灰中的石英晶体衍射峰明显下降；时于掺激发别的试样，在7d时粉煤灰颗粒表面已被腐蚀。

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。