本文關(guān)鍵詞： NiZn系列鐵氧體 離子摻雜改性 磁-電材料 LTCC工藝技術(shù)　出處：《電子科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：在信息技術(shù)快速發(fā)展的今天,信息領(lǐng)域的電子元器件的需求與發(fā)展得到了前所未有的關(guān)注和提高。如何滿足工業(yè)和生活中的高標(biāo)準(zhǔn)和高性能需求,成為電子器件行業(yè)領(lǐng)域亟待解決的問題之一,電子器件性能的提高來源于兩個方面,一是電子電路優(yōu)化設(shè)計(jì),二是提高電子信息基礎(chǔ)材料的性能。所以,在電子信息材料領(lǐng)域方面的研究,在電路優(yōu)化設(shè)計(jì)的基礎(chǔ)上,材料性能的提升研究是解決電子器件發(fā)展問題的關(guān)鍵問題之一。NiZn鐵氧體材料,晶體結(jié)構(gòu)類型為尖晶石結(jié)構(gòu)(AB2O4),在電子器件領(lǐng)域應(yīng)用中,是電感和濾波器等電路器件的重要基礎(chǔ)材料之一。它是一種多元復(fù)合金屬氧化物高溫?zé)Y(jié)合成的化合物,在磁電子學(xué)領(lǐng)域一直占據(jù)著重要的位置。在NiZn鐵氧體材料的應(yīng)用中,從功率鐵氧體功能到片式電感應(yīng)用方面,NiZn鐵氧體及其衍生材料發(fā)揮著巨大的作用。NiZn鐵氧體材料是基礎(chǔ)材料,基礎(chǔ)材料的性能和結(jié)構(gòu)決定著后期的摻雜改性研究,所以,制備NiZn鐵氧體(Ni0.5Zn0.5Fe2O4)材料。采用不同的燒結(jié)曲線燒結(jié)材料,研究材料的晶相、微觀結(jié)構(gòu)、磁性以及Q值等參數(shù)的變化。材料性能表征顯示,當(dāng)燒結(jié)溫度為1050°C時,恒溫保持4 h,飽和磁化強(qiáng)度Ms達(dá)到極大值(57.4emu/g),同時材料的矯頑力出現(xiàn)最低值15.4 Oe。隨著燒結(jié)溫度從950°C到1100°C,磁導(dǎo)率實(shí)部μ′的值也逐漸升高,同時,材料的品質(zhì)因數(shù)Q值逐漸降低。結(jié)合材料內(nèi)部晶體結(jié)構(gòu),第二步制備了La3+三價(jià)離子和Ga3+三價(jià)離子取代三價(jià)Fe3+離子的改性研究,不同的離子取代顯示出不同的性能和微結(jié)構(gòu)變化,結(jié)合離子占位理論詳細(xì)討論。在此基礎(chǔ)上,研究NiCuZn鐵氧體材料和介電材料BaTiO3的復(fù)合材料性能,通過不同配比,研究NiCuZn/BaTiO3復(fù)相陶瓷的磁性和介電雙性能的變化,初步制備磁-電雙性的復(fù)相陶瓷材料。最后,我們研究了復(fù)合材料的低溫共燒技術(shù)(LTCC)的問題,對NiCuZn-BaTiO3材料進(jìn)行低溫?zé)Y(jié),并在一定程度上改善了材料的燒結(jié)工藝和體系的性能。
[Abstract]:With the rapid development of information technology, the demand and development of electronic components in the field of information have received unprecedented attention and improvement. How to meet the needs of high standards and high performance in industry and life. The improvement of the performance of electronic devices comes from two aspects, one is the optimal design of electronic circuits, the other is to improve the performance of electronic information basic materials. In the field of electronic information materials, on the basis of circuit optimization design, the improvement of material properties is one of the key problems to solve the development of electronic devices. NiZn ferrite materials. The crystal structure type is spinel structure AB _ 2O _ 4, which is applied in the field of electronic devices. It is one of the important basic materials of inductor and filter. It is a kind of compound compound metal oxide synthesized by high temperature sintering. It has been playing an important role in the field of magnetoelectronics. In the application of NiZn ferrite materials, from the power ferrite function to the application of chip inductor. NiZn ferrite and its derived materials play a great role. NiZn ferrite materials are basic materials. The properties and structure of basic materials determine the later doping modification research. The NiZn ferrite Ni0.5Zn0.5Fe2O4) material was prepared and sintered with different sintering curves to study the crystalline phase and microstructure of the material. The change of magnetic properties and Q value showed that when sintering temperature was 1050 擄C, the saturation magnetization (Ms) reached a maximum value of 57.4 emu / g at constant temperature of 4 h. At the same time, the coercivity of the material appears to be the lowest 15.4 Oe. With the sintering temperature from 950 擄C to 1100 擄C, the value of the permeability 渭 'increases gradually, and at the same time. The quality factor Q value of the material decreased gradually. In the second step, La3 trivalent ions and Ga3 trivalent ions were prepared to replace trivalent Fe3 ions. Different ion substitutions show different properties and microstructures, which are discussed in detail in combination with ion occupation theory. The properties of NiCuZn ferrite and dielectric BaTiO3 composites were studied. The changes of magnetic and dielectric properties of NiCuZn/BaTiO3 multiphase ceramics were studied. We studied the problem of low temperature co-firing (LTCC) of composite materials and sintered NiCuZn-BaTiO3 materials at low temperature. The sintering process and the properties of the system were improved to some extent.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TM277

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相關(guān)期刊論文 前1條

1 胡軍;鐘立軍;倪哲明;;高導(dǎo)NiZn鐵氧體的微波燒結(jié)及其性能[J];稀有金屬材料與工程;2010年S2期

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本文編號：1488006