1) Si_3N_4/B_4C
Si3N4/B4C
1.
Preparation of Si_3N_4/B_4C aqueous slurry with high suspended solid and low viscosity is an essential step for forming Si_3N_4/B_4C green body by gel casting.
高固相、低粘度Si3N4/B4C水基悬浮体的制备是实现陶瓷材料凝胶注模成型工艺的关键和前提。
2) boron carbide
B4C
1.
High-temperature adhesive was prepared using phenol-formaldehyde resin (PF) as matrix and boron carbide (B_4C) as modifier.
以酚醛树脂为基体,加入B4C作为改性填料制备出高温粘结剂,并对Si3N4陶瓷进行粘接。
2.
This paper theoretically analyzes the wettability of boron carbide by liquid aluminum and discusses the wettability difference between theoretical and practical results based on the characteristics of aluminum and its interaction with boron carbide.
依据金属Al的特性及其与B4C相互作用的关系,在理论上分析Al对 B4C的润湿性,分析理论润湿性与实际润湿性差异的原因,在此基础上,通过实验寻求改善Al对B4C润湿性的方法和工艺,发现升高温度可以改善润湿性,温度由 1 050℃升至1 100℃时,润湿角θ由52°降至23°;在Al中添加小量Mg后,真空 1×10-3Pa,温度1 100℃×3 h时Al对B4C润湿角由原来的23°降至9°。
3.
A boron carbide-aluminum composite was produced by vacuum-pressure infiltration process.
采用真空—压力熔渗工艺制备了B4C/Al金属陶瓷复合材料。
3) Si_3N_4
Si3N4
1.
Fabrication and Simulation of Silicon-on-Insulator Structure with Si_3N_4 as a Buried Insulator;
以Si3N4为埋层的SOI结构制备与器件模拟(英文)
2.
Three experimental schemes were executed to validate the feasibility of producing the V-bearing HRB400 bar with Si_3N_4 alloy as nitrogen alloy reagent.
通过3种试验方案,系统研究了Si3N4合金作为增氮剂用于生产V微合金化Ⅲ级钢筋的可行性。
3.
Synthesis of silicon nitride powder is the basis of fabrication of Si_3N_4 ceramics.
Si3N4陶瓷因其优异的力学性能和化学稳定性而在工业生产中广泛使用。
4) silicon nitride
Si3N4
1.
silicon nitride (Si_3N_4) ceramics were bonded by the adhesive, and the bonded specimens were heat-treated within 300～800℃ subsequently.
以酚醛树脂为基体,加入B4C作为改性填料制备出高温粘结剂,并对Si3N4陶瓷进行粘接。
2.
The addition of the dispersant can make the isoelectric point of silicon nitride slurry move ahead,and make the slurry become better.
结果发现:Si3N4悬浮粒子的等电点在pH=4。
3.
The crack resistance behaviour of two kinds of silicon nitride ceramics which have different microstructure was determined, and the crack closure (bridging) stress distribution in the wake region of the crack tip was also estimated.
测定了 2种不同显微结构的Si3N4 材料的阻力行为 ,并对裂纹扩展过程中的裂尖尾区闭合应力进行了估算 。
5) Si 3N 4
Si3N4
1.
This paper deals with an experimental study on the surface roughness of Si 3N 4 ceramics by WEDM-HS.
分析研究高速走丝电火花线切割加工Si3N4 陶瓷材料时影响表面粗糙度的主要因素 ,并提出了改善表面粗糙度的方
2.
Three kinds of sintering aids MgO, Al 2O 3+AlN and Y 2O 3+AlN are chosen and effect of them and their contents on mechanical properties of pressurelessly sintered (1 800℃×3 h) Si 3N 4 is investigated.
研究了三种助烧剂MgO、Al2 O3+AlN和Y2 O3+AlN对 1 80 0℃× 3h工艺下无压烧结Si3N4力学性能的影响情况。
6) Al 20 3/B 4C
Al2O3/B4C
补充资料：Al-Si cast aluminium alloy
分子式：
CAS号：
性质：以硅为主要合金元素的铸造铝合金。硅的添加量范围为5％～25％，并添加镁、铜等元素，形成亚共晶型、共晶型或过共晶型合金。含硅量为5％～13％的亚共晶型或共晶型合金是工业生产中应用最广泛的铸造铝合金。良好的铸造工艺性能和气密性是它们的主要特点。含硅量在13％以上的过共晶型合金具有热膨胀系数小、耐磨性好等特点。
CAS号：
性质：以硅为主要合金元素的铸造铝合金。硅的添加量范围为5％～25％，并添加镁、铜等元素，形成亚共晶型、共晶型或过共晶型合金。含硅量为5％～13％的亚共晶型或共晶型合金是工业生产中应用最广泛的铸造铝合金。良好的铸造工艺性能和气密性是它们的主要特点。含硅量在13％以上的过共晶型合金具有热膨胀系数小、耐磨性好等特点。
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参考词条