1.Then based on these additives and coats, stainless steel-SiC ceramic matrix composites are composed respectively of lvol%, 5vol% and 7vol% stainless steel particles and SiC; similarly W-SiC ceramic matrix composites are made up respectively of lvol%, 3vol% and 5vol% tungsten particles and SiC;
然后以此量为基准，分别添加1vol％、5vol％和7vol％的不锈钢颗粒制成不锈钢—SiC陶瓷基复合材料：加入1vol％、3vol％以及5vol％的金属钨颗粒制成W—SiC陶瓷基复合材料；
2.the results show that with increasing SiCw content (from 0 to 30vol% in composites, the flexural strength (σf), fracture toughness (K(Ic)) of AS composites and the K(Ic) of AZS composites are continuely increased, but the σf of AZS composites is increased only up to 20vol% SiCw, increasing SiCw content further (up to 30vol%), it is decreased.It is found that that the mechanical properties of AS composites are improved further by incorporating 20vol% ZrO2-2mol% Y2O3. Particles. the σf, K(Ic) of AZS composites are higher than those of AS composites at the same SiCw content. The effects of SiC whisker toughening and ZrO2 Phase transformation toughening on the K(Ic) of Al2O3 ceramics are substantially synergic, but the strengthening effect of SiCw on the Al2O3 ceramics is greater than that of Al2O3+20vol% ZrO2-2mol% Y2O3 ceranics.
结果表明：复合材料的抗弯强度和断裂韧度均随SICW含量的增加（从0～30vol％）而提高，但在AZS复合材料中，当SICW含量大于20vol％时，反而导致抗弯强度下降。 加入20vol％ZrO_2－2mol％Y_2O_3颗粒可使AS复合材料力学性能进一步改善，AZS复合材料的抗弯强度和断裂韧度均高于相同晶须含量的AS复合材料，SICW增韧和ZrO_2相变增韧的作用对Al_2O_3陶瓷断裂韧度的贡献具有良好的叠加性，但SICW对Al_2O_3陶瓷的强化效果大于对Al_2O_3＋20vol％ZrO_2－2mol％Y_2O_3陶瓷。
3.ZrB_2+20vol%SiC, ZrB_2+25vol%SiC, ZrB_2+30vol%SiC and ZrB_2+20vol%SiC+20vol%ZrC composites were prepared by hot-pressing with vacuum. The microstructures and phase constitutions of the composites were investigated by the means SEM, EDS etc. .
本文采用真空热压烧结工艺制备了ZrB_2+20%SiC、ZrB_2+25vol%SiC、ZrB_2+30vol%SiC和ZrB_2+20vol%SiC+20vol%ZrC四种陶瓷基复合材料,利用SEM、EDS等手段对其组织和相成分进行了分析,并对其力学性能进行了测试。
4.The optimized fermentation medium consisted of castor oil 5%(vol/vol), peptone 0.5%, yeast extract 0.25%, surfactant 0.4%(vol/vol), MgSO4 7H2O 0.24%, Na2HPO4 0.12% and KH2PO4
论文确定了发酵γ-癸内酯的培养基组成：蓖麻油5％（vol/vol），蛋白胨0.5％，酵母浸汁0.25％，表面活性剂0.4％（vol/vol），MgSO_4·7H_2O 0.24％，Na_2HPO_4 0.12％，KH_2PO_4
5.2 The PE/gPE/EG (gPE/EG=3/2) electrically conductive nanocomposites were prepared via SI and MMM methods. The φc of the nanocomposites were 2.46vol% and 4.57vol% respectively, which was lower than that of general composites (5.25vol%) and PE/EG compared composites (5.89vol%) prepared via DMM method.
2 采用SI法和MMM法制备了PE／gPE／EG(gPE／EG=3／2)导电纳米复合材料，其Φ_c分别为2.46vol％和4.57vol％，明显低于DMM法制得常规复合材聚乙烯/马来酸配接枝聚乙烯/石墨导电纳米复合材料的研究料和PE尼。 对照材料的少。
6.The reflectivities of the sample with matching layer filled with 50 vol% EPS and absorbing layer filled with 6 vol% CB and 60 vol% EPS were all below -10dB in 8～18GHz.
匹配层填充50 vol％EPS和吸收层填充6 vol％炭黑、60 vol％EPS的试样，在测试频段8～18GHz内，反射率都低于-10dB，有很好的吸波效果。
7.vol％ of SiC Whisker was added to B4C－ 20％ Al2O3 and B4C－ 30％ Al2O3 composites respectively, and sintered at vacuum atmosphere at 1850℃、 35MPa for 40 min.
B4C－ 20vol％ Al2O3和 B4C－ 30vol％ Al2O3两种材料分别掺加了 15vol％ (体积比 )的 SiC晶须 (SiCw)在 1850℃、 35MPa下热压烧结 40min。
8.The microstructure and mechanical properties of Al2O3 -25 vol % ZrO2 (2mol% Y2O3)-25 vol% SiCw(AZS) ceramic composite are investigated by means of XRD, SEM,TEM and EPMA in the paper. The experimental results show that the material possesses a good combination of strength and toughness.
通过XRD、SEM、TEM及EPMA技术研究了Al_2O_3-25vol％ZrO_3(2mol％Y_3O_3)-25vol％SiCw(AZS)三元陶瓷复合材料的显微组织和力学性能。
9.Through the comparison between experiment pits and contrast pits, it was found that the average acidity and moisture content of fermented grains (for experiment pits) increased by 1.31 % and 6.33 % respectively, amylum concentration decreased by 7.14 %, and the average alcoholicity reached 3.43 %Vol (1.30 %Vol higher than that in contrast pits).
实践证明,试验窖与对照窖相比,出窖酒醅的平均酸度、水分分别增加了1.31%和6.33%,淀粉浓度平均下降7.14%,酒精度平均达3.43%Vol,比对照窖高1.30%Vol;
10.The flexural strength and toughness for the-hotpressed composi-tes,containing 15 vol% SiC whiskers and 25% vol% ZrO_2,can be increased by20% and 30% respectively in comparison with zirconia-toughened mullite ceramicswithout whiskers or fibres.
热压烧结的莫来石/25vol% ZrO_2/15vol%Al_2O_3(f)与增韧莫来石(ZTM)相比,室温强度、韧性分别提高近20%、30%。
