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A kind of ZN-NB-TI system LTCC material and preparation method thereof

A zn-nb-ti, base material technology, applied in the field of electronic ceramics and its manufacturing, can solve the problem of high sintering temperature and inability to apply LTCC process

Active Publication Date: 2020-09-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0006] For above-mentioned problems or deficiencies, in order to solve (Zn 1 / 3 B 2 / 3 ) x Ti 1-x o 2 (B=Nb, Ta, 0.4≤x≤0.7) The problem that the sintering temperature of the ceramic system is relatively high and cannot be applied to the LTCC process, the invention provides a Zn-Nb-Ti system LTCC material and a preparation method thereof, and its base material is Zn 0.15 Nb 0.3 Ti 0.55 o 2 Ceramic, x=0.45, its sintering temperature (≤900℃), dense system, high dielectric constant (≈73), low loss (≤10 -4 ), prepared by a solid-phase sintering process

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  • A kind of ZN-NB-TI system LTCC material and preparation method thereof
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  • A kind of ZN-NB-TI system LTCC material and preparation method thereof

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] Step 1: Prepare the main crystal phase calcined material, ZnO, TiO 2 , Nb 2 o 5 The analytically pure raw powder according to Zn 0.15 Nb 0.3 Ti 0.55 o 2 Chemical formula for batching; mix the prepared powder according to the mass ratio of powder: zirconium ball: deionized water = 1:5:2, planetary ball milling for 6 hours, drying and sieving (60 mesh) after ball milling, and then at 950 ° C The main crystal phase (Zn 0.15 Nb 0.3 Ti 0.55 o 2 Phase), that is, pre-fired powder;

[0018] Step 2: Prepare a fever reducer, and Li 2 CO 3 、H 3 BO 3 , SiO 2 , CuO and CaO ingredients, ball milled for 7 hours, then dried through a 60-mesh sieve, then pre-fired at 600°C for 3 hours, and finally kept at 1350°C for 1.5 hours to melt the glass slag, and the prepared glass slag was crushed and ball-milled into powder for later use;

[001...

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Abstract

The invention belongs to the field of electronic ceramics and its manufacture, and in particular relates to a Zn-Nb-Ti-based LTCC material and a preparation method thereof. The LTCC material that the present invention provides, base material is Zn 0.15 Nb 0.3 Ti 0.55 o 2 Ceramics, sintering temperature ≤ 900 ° C, containing the main crystal phase Zn 0.15 Nb 0.3 Ti 0.55 o 2 and subcrystalline ZnTiNb 2 o 8 two phases. Its raw materials are ZnO, TiO 2 and Nb 2 o 5 , and a fever reducing agent accounting for 0.5% to 4% by weight, prepared by a solid phase method. The composition of the fever reducer is: Li 2 CO 3 : 36.15%~44.53%, H 3 BO 3 : 38.35% to 44.86%, SiO 2 : 2.56% to 6.33%, CuO: 0% to 5%, CaO: 0% to 10%. In the present invention, through the use of a fever reducer, the Zn 0.15 Nb 0.3 Ti 0.55 o 2 Low temperature sintering of ceramics (≤900°C) for LTCC process.

Description

technical field [0001] The invention belongs to the field of electronic ceramics and its manufacture, and in particular relates to a Zn-Nb-Ti-based LTCC material and a preparation method thereof. Background technique [0002] Microwave dielectric ceramics (MWDC) are the key basic materials of microwave components in radio communication equipment, and are a new type of functional ceramics that have been well researched at home and abroad for more than 20 years. The 300MHz~30GHz frequency band in radio waves is called microwave. Microwave signals have the characteristics of extremely high frequency, extremely short wavelength, large information capacity, strong directionality, penetrability and absorption capacity. With the rapid development of radio communication technology and With the frequent replacement of mobile communication equipment, microwave dielectric ceramics have become an indispensable core component material in microwave circuits. [0003] The microwave dielec...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/495C04B35/622C04B35/632
CPCC04B35/495C04B35/622C04B35/632C04B2235/3203C04B2235/3208C04B2235/3281C04B2235/3409C04B2235/3418
Inventor 李恩竹杨鸿程杨鸿宇袁颖张树人
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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