CN100500609C - Zero-expansion material - Google Patents

Zero-expansion material Download PDF

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Publication number
CN100500609C
CN100500609C CNB2006101650303A CN200610165030A CN100500609C CN 100500609 C CN100500609 C CN 100500609C CN B2006101650303 A CNB2006101650303 A CN B2006101650303A CN 200610165030 A CN200610165030 A CN 200610165030A CN 100500609 C CN100500609 C CN 100500609C
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zero
hours
hour
zno
ybi
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CN101070244A (en
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邢献然
陈骏
刘桂荣
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University of Science and Technology Beijing USTB
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University of Science and Technology Beijing USTB
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Abstract

This invention relates to a not expanding material used at minus 140 to 700 deg, belongs to non-metal material region. The invention takes PbO, TiO2, Bi2O3, Fe2O3 and ZnO as precursor, utilize high temperature solid phase method to prepare ( 1 - X - Y) PbTiO3 - xBiFeO3 - yBi ( Zn1 / 2Ti1 / 2) O3 powder body, require the X is not less than 0.0 and not greater than 0.2, and Y is not less than 0.0 and not greater than 0.4; accordingly weigh the PbO, TiO2, Bi2O3, Fe2O3, and ZnO, then ball mill in ethanol solution for 1 to 48 hours for intensive mixing, drying and squashing to make sheet, calcining at 700 to 1300 deg for 1 to 24 hours, the offspring after calcining ball mill at ethanol solution for 1 to 48 hours, then drying again and squashing for sheet, calcining at 800 to 1300 deg for 1 to 48 hours, cooling, the finished product after grinding is zero expanding material PbTiO3 - BiFeO3 - Bi ( Zn1 / 2Ti1 / 2) O3.

Description

A kind of Zero-expansion material
Technical field
The invention belongs to field of inorganic nonmetallic material, particularly a kind of Zero-expansion material that can in-140～700 ℃ of scopes, use
Background technology
Zero-expansion material has very high research and actual application value, along with the volume of this class material of variation of temperature does not change or changes very faint.Zero-expansion material has significant thermal shock resistance because the thermal expansion temperature influence is little.This class distribution of material is very wide, from daily necessities to the aerospace field.At present, the major part of having reported is a matrix material, as: ZrW 2O 8Matrix composite (ZrO 2/ ZrW 2O 8Matrix material, ZrW 2O 8/ cement etc.), yet also there is the weakness of himself in this class matrix material, as problem such as manufacturing process complexity, physical strength be low.Document Nature, 2003,425:702 has reported that YbGaGe has the zero thermal expansion performance, but temperature range narrower (173～25 ℃); Document J.Am.Chem.Soc., 2004,126:15390 has reported the material Fe[Co (CN) with zero thermal expansion behavior 6], the average body thermal expansivity is-0.44 * 10 -5℃ -1, same temperature range narrow (263～25 ℃).So, how realize zero thermal expansion in mutually, and widen the use temperature scope and have significant application value single.
Summary of the invention
The object of the invention is to study a kind of material that has the zero thermal expansion characteristic in wide temperature range more, has high-temperature stable, does not decompose characteristics.
A kind of Zero-expansion material is characterized in that with PbO, TiO 2, Bi 2O 3, Fe 2O 3And ZnO is presoma, utilizes high temperature solid-state method preparation (1-x-y) PbTiO 3-xBiFeO 3-yBi (Zn 1/2Ti 1/2) O 3(0≤x≤0.2 and 0＜y≤0.4) powder is according to (1-x-y) PbTiO 3-xBiFeO 3-yBi (Zn 1/2Ti 1/2) O 3Take by weighing the PbO, the TiO that meet chemical dosage ratio 2, Bi 2O 3, Fe 2O 3And ZnO, sample after weighing ball milling in ethanolic soln made its thorough mixing in 1～48 hour, powder drying compacting behind the ball milling in flakes, in 700～1300 ℃ of temperature ranges, calcined 1～24 hour, product after calcining ball milling 1～48 hour in ethanolic soln, the dry again compacting of the powder that obtains in flakes, sintering 1～48 hour in 800～1300 ℃ of temperature ranges again, cooled finished product promptly obtains Zero-expansion material (1-x-y) PbTiO after grinding 3-xBiFeO 3-yBi (Zn 1/2Ti 1/2) O 3
The present invention is at soild oxide (1-x-y) PbTiO 3-xBiFeO 3-yBi (Zn 1/2Ti 1/2) O 3Realized the zero thermal expansion characteristic, zero thermal expansion temperature range wide (140～700 ℃), this material has high-temperature stable, does not decompose characteristics, prepares simple and easyly, need not large-scale equipment.
Description of drawings
Fig. 1 is 0.7PbTiO 3-0.3Bi (Zn 1/2Ti 1/2) O 3Compounds X RD collection of illustrative plates.
Fig. 2 is 0.7PbTiO 3-0.3Bi (Zn 1/2Ti 1/2) O 3The relation of compound unit-cell volume and temperature.
Fig. 3 is 0.6PbTiO 3-0.1BiFeO 3-0.3Bi (Zn 1/2Ti 1/2) O 3Compounds X RD collection of illustrative plates.
Fig. 4 is 0.6PbTiO 3-0.1BiFeO 3-0.3Bi (Zn 1/2Ti 1/2) O 3The relation of compound unit-cell volume and temperature.
Embodiment
Embodiment one:
Utilize the synthetic 0.7PbTiO of this invention 3-0.3Bi (Zn 1/2Ti 1/2) O 3Take by weighing 7.6532 gram Pb0,3.3250 gram TiO 2, 3.4237 the gram Bi 2O 3, and 0.5980 the gram ZnO, ball milling is after 1 hour in ethanolic soln, compacting was calcined 5 hours down at 700 ℃ in flakes behind the powder drying that obtains, the calcining after product is ball milling 10 hours in ethanolic soln once more, the powder that obtains dry again back compacting in flakes, 1200 ℃ of sintering 24 hours, the product that obtains after the cooling was Zero-expansion material 0.7PbTiO again 3-0.3Bi (Zn 1/2Ti 1/2) O 3
Fig. 1 illustrates 0.7PbTiO 3-0.3Bi (Zn 1/2Ti 1/2) O 3Compound is single phase.Fig. 2 is this compound unit-cell volume and variation of temperature relation, from then among the figure as can be seen unit-cell volume be not acted upon by temperature changes substantially, have the Zero-expansion material feature.
Embodiment two:
Utilize the synthetic 0.6PbTiO of this invention 3-0.1BiFeO 3-0.3Bi (Zn 1/2Ti 1/2) O 3Take by weighing 5 gram Pb0,2.2362 gram TiO 2, 3.4794 the gram Bi 2O 3, 0.2981 the gram Fe 2O 3And 0.4558 the gram ZnO, ball milling mixed 24 hours in ethanolic soln, compacting was calcined 5 hours down at 800 ℃ in flakes behind the powder drying that obtains, ball milling 48 hours in ethanolic soln once more after the cooling of the product that obtains, compacting in flakes behind the powder drying that obtains, 1000 ℃ of sintering 2 hours, the finished product that obtains after the cooling was Zero-expansion material 0.6PbTiO again 3-0.1BiFeO 3-0.3Bi (Zn 1/2Ti 1/2) O 3
Fig. 3 illustrates 0.6PbTiO 3-0.1BiFeO 3-0.3Bi (Zn 1/2Ti 1/2) O 3Compound is single phase.Fig. 4 is this compound unit-cell volume and variation of temperature relation, from then among the figure as can be seen unit-cell volume be not acted upon by temperature changes substantially, have the Zero-expansion material feature, use temperature wide ranges (140～700 ℃).

Claims (1)

1. a Zero-expansion material is characterized in that with PbO, TiO 2, Bi 2O 3, Fe 2O 3And ZnO is presoma, utilizes high temperature solid-state method preparation (1-x-y) PbTiO 3-xBiFeO 3-yBi (Zn 1/2Ti 1/2) O 3Powder requires 0≤x≤0.2 and 0＜y≤0.4, according to (1-x-y) PbTiO 3-xBiFeO 3-yBi (Zn 1/2Ti 1/2) O 3Take by weighing the PbO, the TiO that meet chemical dosage ratio 2, Bi 2O 3, Fe 2O 3And ZnO, sample after weighing ball milling 1～48 hour in ethanolic soln, powder drying compacting behind the ball milling in flakes, in 700～1300 ℃ of temperature ranges, calcined 1～24 hour, product after calcining ball milling 1～48 hour in ethanolic soln, the dry again compacting of the powder that obtains in flakes, sintering 1～48 hour in 800～1300 ℃ of temperature ranges again, cooled finished product promptly obtains Zero-expansion material (1-x-y) PbTiO after grinding 3-xBiFeO 3-yBi (Zn 1/2Ti 1/2) O 3
CNB2006101650303A 2006-12-12 2006-12-12 Zero-expansion material Expired - Fee Related CN100500609C (en)

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CN100500609C true CN100500609C (en) 2009-06-17

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106906517A (en) * 2017-02-27 2017-06-30 西安交通大学 A kind of bismuth ferrite lead titanates piezoelectric monocrystal and preparation method thereof
CN109133667B (en) * 2018-09-18 2021-09-21 陕西科技大学 BEFMO/ZCO composite heterojunction with resistance switching effect and preparation method thereof
CN110983174B (en) * 2019-12-19 2021-03-30 北京科技大学 Uniaxial zero-expansion composite material with plasticity and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Pb(1-x)SrxTiO3固溶化合物及其热膨胀性. 陈骏，邢献然，邓金侠，刘桂荣.金属学报，第39卷第7期. 2003
Pb(1-x)SrxTiO3固溶化合物及其热膨胀性. 陈骏，邢献然，邓金侠，刘桂荣.金属学报，第39卷第7期. 2003 *

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