Method of determining the crystallization temperatures of amorphous metals 非晶體金屬的結(jié)晶溫度測(cè)定方法
The traditional measuring method of melting and crystallizing temperature is complex and inefficient 摘要傳統(tǒng)的熔化溫度和結(jié)晶溫度測(cè)量方法復(fù)雜、效率低。
Plastics - differential scanning calorimetry - part 3 : determination of temperature and enthalpy of melting and crystallization 塑料差示掃描量熱法dsc第3部分:熔融和結(jié)晶溫度及熱焓的測(cè)定
A device of measuring the crystallization temperature of mold slag based on single thermocouple wire was introdued 筆者以保護(hù)渣結(jié)晶溫度為出發(fā)點(diǎn),提出了一種將雙鉑銠熱電偶絲既作為加熱元件,又作測(cè)溫元件的熱絲法技術(shù)。
Dsc and x - ray diffraction results show that after pan - milling , the crystallinity and the size of micro crystals of pa6 decrease . melting point increases and crystallization temperature decreases 表現(xiàn)為結(jié)晶度降低,微晶尺寸減小;熔融溫度降低,結(jié)晶溫度升高;球晶尺寸減小。
In the isothermal crystallization experiment , the dsc exothermic curves become flat as decrease of the degrees of undercooling within the experimental temperatures 在等溫結(jié)晶實(shí)驗(yàn)中,在所測(cè)試的結(jié)晶溫度范圍內(nèi),隨著過(guò)冷度的減小, dsc放熱曲線(xiàn)趨于變緩,結(jié)晶完成時(shí)間延長(zhǎng),結(jié)晶速率減小。
Nano - sio2 acted as the nucleation agent in pp , and greatly upgrading the crystal temperature , nucleation rate and crystallinity when 1 % ~ 5 % nano - sio2 by weight was added 在納米sio _ 2含量為1 5份時(shí), pp的結(jié)晶溫度以及結(jié)晶速率隨著含量的增加而增加;結(jié)晶度隨著納米sio _ 2 ,粒子的含量先增加然后下降。
For pam 1 / nylon 6 with more rigidity composites , the rates of crystallization . during nonisothermal crystallization , the dsc crystallization curves and crystallization temperature tp move towards lower temperature 在非等溫結(jié)晶過(guò)程中,隨著降溫速率的增大, dsc結(jié)晶峰的位置和結(jié)晶溫度t _ p向低溫方向移動(dòng)。
Automatic temperature coutrol can precisely control the crystalization temperature to ensure grain structure , mechanically controlled casting die speed is used to ensure the density of material 自動(dòng)溫控系統(tǒng)對(duì)結(jié)晶溫度實(shí)施準(zhǔn)確控制以確保晶粒結(jié)構(gòu)(金相)符合要求。機(jī)械控制恒定的鑄造結(jié)晶速度以保證材質(zhì)的致密性。
But it is mainly dependant on the physical parameters such as volume shrinkage . and when phbv crystallized , the hv content will be segregated , it will be accelerated when crystallization temperature is increased 在結(jié)晶過(guò)程中, phbv二元共晶中hv (羥基戊酸)組分會(huì)受到排斥,結(jié)晶溫度的升高會(huì)導(dǎo)致hv組分分凝現(xiàn)象的加劇。