摘要:
An aspect of the present invention relates to a glass substrate for a magnetic recording medium, which is comprised of glass with a glass transition temperature of equal to or greater than 600° C., an average coefficient of linear expansion at 100 to 300° C. of equal to or greater than 70×10−7/° C., a Young's modulus of equal to or greater than 81 GPa, a specific modulus of elasticity of equal to or greater than 30 MNm/kg, and a fracture toughness value of equal to or greater than 0.9 MPa·m1/2.
摘要:
The present invention relates to recording glass substrates molar percentages: 56-75 SiO2, 1-11 Al2O2, more than 0-4 Li2O, 1-15 Na2O. more than 0 less than 3 K2O, no BaO. total Li2O, Na2O and K2O 6-15, (Li2O Na2O) less than 0.50, {K2O/(Li2O, Na2O and K2O)} equal or less than 0.13, total MgO, CaO and SrO 10-30, MgO and CaO 10-30, {(MgO+CaO)/(MgO+CaO+SrO)} equal or more than 0.86, alkali oxides to alkaline earth oxides equal to or more than 0.50. total ZrO2, TiO2, Y2O3, La2O3, Gd2O3, Nb2O5, and Ta2O5 more than 0 equal to or less than 10, molar ratio {(ZrO2, TiO2, Y2O3, La2O3, Gd2O3, Nb2O5, and Ta2O5)/Al2O2 equal or more than 0.40, Tg equal to or higher than 600° C., average coefficient linear expansion equal or higher than 70×10−7/°C. at 100-300° C. and Young's modulus equal to or higher than 80 GPa.
摘要翻译:本发明涉及记录玻璃基板的摩尔百分比:56-75SiO 2,1-11 Al 2 O 2,大于0-4 Li 2 O,1〜15纳摩尔。 超过0小于3 K2O,不含BaO。 总Li2O,Na2O和K2O6-15,(Li2O·Na2O)小于0.50,{K2O /(Li2O,Na2O和K2O)}等于或小于0.13,总MgO,CaO和SrO 10-30,MgO和CaO 10- 30,等于或大于0.86的{(MgO + CaO)/(MgO + CaO + SrO)}等于或大于0.50的碱金属氧化物至碱土金属氧化物。 等于或等于或等于10的摩尔比{(ZrO 2,TiO 2,Y 2 O 3,La 2 O 3,Gd 2 O 3,Nb 2 O 5和Ta 2 O 5)/ Al 2 O 2的总ZrO 2,TiO 2,Y 2 O 3,La 2 O 3,Gd 2 O 3,Nb 2 O 5和Ta 2 O 5等于或等于10 0.40,Tg等于或高于600℃,平均系数线膨胀等于或高于70×10-7 /℃。 在100-300℃,杨氏模量等于或高于80GPa。
摘要:
An aspect of the present invention relates to glass for a magnetic recording medium substrate, which comprises, denoted as molar percentages, 50 to 75 percent of SiO2, 0 to 5 percent of Al2O3, 0 to 3 percent of Li2O, 0 to 5 percent of ZnO, a total of Na2O and K2O of 3 to 15 percent, a total of MgO, CaO, SrO, and BaO of 14 to 35 percent, a total of ZrO2, TiO2, La2O3, Y2O3, Yb2O3, Ta2O5, Nb2O5, and HfO2 of 2 to 9 percent, with a molar ratio of {(MgO+CaO)/(MgO+CaO+SrO+BaO)} falling within a range of 0.85 to 1, and a molar ratio of {Al2O3/(MgO+CaO)} falling within a range of 0 to 0.30.
摘要翻译:本发明的一个方面涉及一种用于磁记录介质基板的玻璃,其包括以摩尔百分数表示的是50%至75%的SiO 2,0至5%的Al 2 O 3,0至3%的Li 2 O,0至5%的 ZnO,总共为3〜15%的Na 2 O和K 2 O,总共为14〜35%的MgO,CaO,SrO和BaO,总共为ZrO 2,TiO 2,La 2 O 3,Y 2 O 3,Yb 2 O 3,Ta 2 O 5,Nb 2 O 5,HfO 2 的2%〜9%,摩尔比{(MgO + CaO)/(MgO + CaO + SrO + BaO)}在0.85〜1的范围内,{Al 2 O 3 /(MgO + CaO) }落在0到0.30的范围内。
摘要:
An aspect of the present invention relates to glass for a magnetic recording medium substrate, which comprises, denoted as molar percentages, 50 to 75 percent of SiO2, 0 to 5 percent of Al2O3, 0 to 3 percent of Li2O, 0 to 5 percent of ZnO, a total of Na2O and K2O of 3 to 15 percent, a total of MgO, CaO, SrO, and BaO of 14 to 35 percent, a total of ZrO2, TiO2, La2O3, Y2O3, Yb2O3, Ta2O5, Nb2O5, and HfO2 of 2 to 9 percent, with a molar ratio of {(MgO+CaO)/(MgO+CaO+SrO+BaO)} falling within a range of 0.85 to 1, and a molar ratio of {Al2O3/(MgO+CaO)} falling within a range of 0 to 0.30.
摘要翻译:本发明的一个方面涉及一种用于磁记录介质基板的玻璃,其包括以摩尔百分数表示的是50%至75%的SiO 2,0至5%的Al 2 O 3,0至3%的Li 2 O,0至5%的 ZnO,总共为3〜15%的Na 2 O和K 2 O,总共为14〜35%的MgO,CaO,SrO和BaO,总共为ZrO 2,TiO 2,La 2 O 3,Y 2 O 3,Yb 2 O 3,Ta 2 O 5,Nb 2 O 5,HfO 2 的2%〜9%,摩尔比{(MgO + CaO)/(MgO + CaO + SrO + BaO)}在0.85〜1的范围内,{Al 2 O 3 /(MgO + CaO) }落在0到0.30的范围内。
摘要:
An aspect of the present invention relates to glass for a magnetic recording medium substrate, which includes essential components in the form of SiO2, Li2O, Na2O, and one or more alkaline earth metal oxides selected from the group consisting of MgO, CaO, SrO, and BaO, wherein a molar ratio of a content of MgO to a combined content of MgO, CaO, SrO, and BaO (MgO/(MgO+CaO+SrO+BaO)) is equal to or greater than 0.80, and which has a Young's modulus of equal to or greater than 80 GPa, and a glass transition temperature of equal to or greater than 620° C.
摘要:
An AC/DC converter is configured to perform voltage conversion on power supplied from an AC power supply and supply the power to an auxiliary load during external charging in which a main power storage device is charged by the AC power supply. An auxiliary power storage device stores power to be supplied to the auxiliary load. A diode permits discharging of the auxiliary power storage device while preventing charging of the auxiliary power storage device during the external charging. A current sensor detects discharging of the auxiliary power storage device. A controller adjusts an output voltage of the AC/DC converter while confirming whether or not the auxiliary power storage device discharges, based on a detection value of the current sensor.
摘要:
An electrical insulating material for use in electrical insulators, for example, for insulated electric wires such as internal wiring of electronic equipment, automobiles or the like, electrical insulating covers produced from the electrical insulating material and a method of electrical insulation using the material are provided. More particularly, it relates to an electrical insulating material which is excellent in mechanical properties and durability, an electrical insulating cover produced from the material and a method of electrical insulation using the material.
摘要:
An automatic insertion bookmark 10 designed to allow a bookmark portion 14 to be automatically inserted into and placed on an opened page 20a of a book 16. The bookmark 10 includes a fixing portion 12, a connecting portion 13, and a bookmark portion 14. The fixing portion 12 is either prefixed to one of the following or fixed thereto when the bookmark 10 is used: a back cover 18 of the book 16; a front cover 20 of the book 16; and, a leaf 19 of the book 16 in the immediate vicinity of either the back cover 18 or the front cover 20. A proximal end of the connecting portion 13 is connected to an upper portion of the fixing portion 12. Further, the bookmark portion 14 is connected to a distal end of the connecting portion 13. When the bookmark 10 is used, the bookmark portion 14 is folded downward at a portion where the bookmark portion 14 and the connecting portion 13 are joined together. As a result, the bookmark portion 14 is directed downward in an opposed relationship to the fixing portion 12.
摘要:
A vehicle includes a PCU controlling electric power supplied to a motor, a first power storage device, a second power storage device, an ECU, a charger, system main relays SMR1 to SMR4, SMRA, SMRB, and charging relays CR1 to CR4. The first power storage device is formed such that a first module and a second module which are separately disposed are connected in series through SMRA and SMRB. The first power storage device is connected to the PCU through SMR1 and SMR2. The second power storage device is connected to the PCU through SMR3 and SMR4. The charger has a capacitor that is connected to the first power storage device through CR1 and CR2 and also connected to the second power storage device through CR3 and CR4. When charging is completed, the ECU turns on CR1, CR2, SMR1, and SMR2, and turns off SMRA, SMRB, CR3, CR4, SMR3, and SMR4.
摘要:
A vehicle includes a PCU controlling electric power supplied to a motor, a first power storage device, a second power storage device, an ECU, a charger, system main relays SMR1 to SMR4, SMRA, SMRB, and charging relays CR1 to CR4. The first power storage device is formed such that a first module and a second module which are separately disposed are connected in series through SMRA and SMRB. The first power storage device is connected to the PCU through SMR1 and SMR2. The second power storage device is connected to the PCU through SMR3 and SMR4. The charger has a capacitor that is connected to the first power storage device through CR1 and CR2 and also connected to the second power storage device through CR3 and CR4. When charging is completed, the ECU turns on CR1, CR2, SMR1, and SMR2, and turns off SMRA, SMRB, CR3, CR4, SMR3, and SMR4.