版塊導(dǎo)航: 正在加載中...

應(yīng)《網(wǎng)絡(luò)安全法》要求，自2017年10月1日起，未進(jìn)行實(shí)名認(rèn)證將不得使用互聯(lián)網(wǎng)跟帖服務(wù)。為保障您的帳號(hào)能夠正常使用，請(qǐng)盡快對(duì)帳號(hào)進(jìn)行手機(jī)號(hào)驗(yàn)證，感謝您的理解與支持！

24小時(shí)熱門版塊排行榜

北京石油化工學(xué)院2026年研究生招生接收調(diào)劑公告

返回列表

本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看

浮云翳月

新蟲 (初入文壇)

應(yīng)助: 0 (幼兒園)
金幣: 73.1
帖子: 16
在線: 6.2小時(shí)
蟲號(hào): 2663427
注冊(cè): 2013-09-18
性別: GG
專業(yè): 金屬非晶態(tài)、準(zhǔn)晶和納米晶

[求助] 幫忙翻譯下面幾段話

　　　TiO2壓敏陶瓷是一種具有壓敏電壓低、非線性系數(shù)大，介電常數(shù)高等優(yōu)異電學(xué)行為的半導(dǎo)體功能材料。在低壓領(lǐng)域中，在過壓保護(hù)和消噪、抗浪涌等方面應(yīng)用日益廣泛。本文在對(duì)國(guó)內(nèi)外壓敏陶瓷研究的歷史、現(xiàn)狀及前景概述的基礎(chǔ)上，對(duì)摻雜Ta2O5的TiO2基陶瓷的壓敏特性進(jìn)行了研究。
　　　本設(shè)計(jì)采用固相燒結(jié)法制備了一系列樣品。主要研究了不同摻雜量的Ta2O5和不同溫度對(duì)壓敏材料的壓敏電壓和非線性系數(shù)等的影響，并進(jìn)行了相關(guān)的比較分析。主要實(shí)驗(yàn)工作及結(jié)果如下：
（1）研究了Ta2O5摻雜量在0.01mol%--1.0mol%的范圍內(nèi)對(duì)TiO2基陶瓷的非線性伏-安特性及介電性能的影響。結(jié)果表明：隨著Ta2O5摻雜量的持續(xù)增加，樣品的非線性系數(shù)先增后減，其最大值為6，在Ta2O5的摻雜量為0.1 mol%附近時(shí)獲得；樣品介電常數(shù)（在1kHz頻率下測(cè)量）先減后增，其最小值在Ta2O5摻雜量在 0.1mol%附近獲得。
（2）研究了不同溫度對(duì)該樣品的壓敏特性的影響。研究結(jié)果表明：在1250℃~1400℃范圍內(nèi)，隨著溫度的升高，壓敏電壓、非線性系數(shù)逐漸增加，在1350℃時(shí)，樣品具有最好的壓敏性（V1mA~ 6 ，α~ 6）。

回復(fù)此樓

» 猜你喜歡

材料求調(diào)劑一志愿哈工大324 已經(jīng)有5人回復(fù)
一志愿哈爾濱工業(yè)大學(xué)材料與化工方向336分已經(jīng)有5人回復(fù)
0856材料化工調(diào)劑總分330 已經(jīng)有9人回復(fù)
085602 化工專碩 338分求調(diào)劑已經(jīng)有9人回復(fù)
352分化工與材料已經(jīng)有4人回復(fù)
求調(diào)劑已經(jīng)有8人回復(fù)
材料求調(diào)劑一志愿哈工大總分298分，前三科223分已經(jīng)有3人回復(fù)
085600 286分材料求調(diào)劑已經(jīng)有4人回復(fù)
求調(diào)劑已經(jīng)有7人回復(fù)
275求調(diào)劑已經(jīng)有10人回復(fù)

1樓 2013-11-27 15:23:35

已閱回復(fù)此樓關(guān)注TA 給TA發(fā)消息送TA紅花 TA的回帖

befair

鐵桿木蟲 (正式寫手)

翻譯EPI: 112
應(yīng)助: 131 (高中生)
金幣: 12327.3
紅花: 20
帖子: 661
在線: 608.6小時(shí)
蟲號(hào): 2651461
注冊(cè): 2013-09-13
性別: GG
專業(yè): 宏觀經(jīng)濟(jì)管理與戰(zhàn)略

【答案】應(yīng)助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
浮云翳月: 金幣+140, 翻譯EPI+1, ★★★★★最佳答案, 多謝多謝 2013-11-30 22:17:21

TiO2 varistor ceramics is a semiconductor functional material with excellent electrical behaviours such as low varistor voltage, large nonlinear coefficient and  high dielectric constant. In low voltage field, it has found ever increasing applications in over voltage protection, noise reduction as well as  surge suppression. This paper studies the varistor characteristics of TiO2 based ceramics doped with TA2O5, based on a review of the history, current status and future perspectives of  varistor ceramics in China as well as abroad.
In this design a series of samples are prepared using solid state sintering. The focus has been on the impact of Ta2O5, with different dopants, and different temperatures on the varistor voltage and nonlinear coefficient and comparisons are made accordingly. The main experimental work and results are as follows:
1. Impacts of Ta2O5 doped within a range of 0.01mol%--1.0mol% on the nonlinear V-A characteristics and  dielectric properties of TiO2 varistor ceramics. The results demonstrate that with the gradual increase of Ta2O5 dopant, the nonlinear coefficient of the samples first increases and then decreases, with the maximum being 6 obtained when the Ta2O5 dopant is close to 0.1 mol%; sample dielectric constant (measured at 1kHz frequency) first decreases and then increases, with its minimum occurring when the Ta2O5 dopant is close to 0.1 mol%.
2. Impacts of different temperatures on the varistor characteristics of the samples. The study shows that within a range of  1250℃~1400℃, as the temperature rises, varistor voltage and nonlinear coefficient  gradually increase and at 1350℃, the samples have the best pressure sensitivity （V1mA~  6 ，α~  6）.
供參考

贊一下

回復(fù)此樓

Befairorbeaware

2樓2013-11-30 16:58:34