1) 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。
2) 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 。
3) 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。
4) Si3N4/Si3N4 joint
Si3N4/Si3N4接头
5) β-Si_3N_4
β-Si3N4
1.
Both unit cell parameters and fractional atomic coordinates of β-Si_3N_4 have been fully relaxed using Crysta106 program that adopts all-electron gauss-type basis sets and the density functional theory (PW91 and B3LYP).
分别用PW91,B3LYP两种密度泛函方法和全电子高斯基组对β-Si3N4的几何结构进行全优化(包括晶格参数和原子坐标),结果和实验值符合良好。
6) Si_3N_4-Si_2N_2O
Si3N4-Si2N2O
1.
Fine-grained Si_3N_4-Si_2N_2O dual-phase ceramic was fabricated with amorphous nano-sized silicon nitride powders and nano-sized Al_2O_3 and Y_2O_3 powders as additives by in-situ reaction 2Si_3N_4(s)+1.
以Y2O3和Al2O3纳米陶瓷粉体作为烧结助剂,液相烧结非晶纳米Si3N4陶瓷粉体,制备Si3N4-Si2N2O复相陶瓷。
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