JPS61101499A - Antimony oxide whisker and its production - Google Patents

Antimony oxide whisker and its production

Info

Publication number
JPS61101499A
JPS61101499A JP22007584A JP22007584A JPS61101499A JP S61101499 A JPS61101499 A JP S61101499A JP 22007584 A JP22007584 A JP 22007584A JP 22007584 A JP22007584 A JP 22007584A JP S61101499 A JPS61101499 A JP S61101499A
Authority
JP
Japan
Prior art keywords
antimony
oxygen
antimony oxide
containing gas
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22007584A
Other languages
Japanese (ja)
Inventor
Yoshimi Kamijo
芳省 上條
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP22007584A priority Critical patent/JPS61101499A/en
Publication of JPS61101499A publication Critical patent/JPS61101499A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prepare an antimony oxide whisker consisting of a needle-like or rod-like single crystal, effectively, by calcining metallic antimony in an oxygen-containing atmosphere at or above a specific temperature. CONSTITUTION:The powder, granule, wire, rod, etc. of metallic antimony is used as a raw material, and is supplied to the perforated plate 15 through the feeding pipe 16. An oxygen-containing gas 12 heated at about 80 deg.C, e.g. air is introduced through the feeding port 13, passed through the quartz tube 11, and exhausted through the exhaust port 14. In the above state, the region near the perforated plate 15 is heated at >=450 deg.C by heating the inside of the quartz tube 11 with the heater 17. The metallic antimony is oxidized with the oxygen-containing gas 12, sublimed or evaporated successively in the form of antimony oxide, transferred upward, and discharged through the exhaust port 14 as antimony oxide whisker. The whisker is separated from the oxygen- containing gas by a proper means to obtain the objective antimony oxide whisker.

Description

【発明の詳細な説明】 「技術分野」 本発明は、酸化アンチモンウィスカーおよびその製造方
法に関する。
DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to antimony oxide whiskers and methods for producing the same.

「従来技術およびその問題点」 金属酸化物は、棒状、線状、針状、フレーク状などの形
状をなすことがあり、ウィスカーと呼ばれている。ウィ
スカーを形成する金属醇化物としては、これまでに醇化
アルミニウム(A1203)、酸化亜鉛(ZnO) 、
酸化ベリリウム(Bed) 、酸化マグネシウム(にg
o)などが知られている。これらのウィスカーは、上記
のような特殊な形状をなすと共に極めて強固なため、現
在プラスチックのフィラーとして利用されているが、そ
の他各種用途への利用が検討されている。
"Prior Art and its Problems" Metal oxides may have a shape such as a rod, a line, a needle, or a flake, and are called whiskers. So far, metal infusions that form whiskers include aluminum infusion (A1203), zinc oxide (ZnO),
Beryllium oxide (Bed), Magnesium oxide (Nig)
o) etc. are known. These whiskers have the above-mentioned special shape and are extremely strong, so they are currently used as fillers for plastics, but their use in various other applications is also being considered.

このように、各種の金属酸化物からなるウィスカーが知
られているが、酸化アンチモン(5b204 )につい
ては未だウィスカーを形成することが知られておらず、
その性状も明らかでなかった。
As described above, whiskers made of various metal oxides are known, but antimony oxide (5b204) is not yet known to form whiskers.
Its properties were also unclear.

「発明の目的」 本発明の目的は、新規な工業用材料として各種用途への
応用が期待される酸化アンチモンウィスカーおよびその
製造方法を提供することにある。
[Object of the Invention] An object of the present invention is to provide antimony oxide whiskers that are expected to be applied to various uses as a new industrial material, and a method for producing the same.

「発明の構成」 本発明の酸化アンチモンウィスカーは、酸化アンチモン
の針状もしくは棒状単結晶からなっている。
"Structure of the Invention" The antimony oxide whiskers of the present invention are made of needle-like or rod-like single crystals of antimony oxide.

また1本発明の酸化アンチモンウィスカーの製遣方法は
、金属アンチモンを酸素含有雰囲気中で400℃以上の
温度で焼成する方法である。
A method for producing antimony oxide whiskers according to the present invention is a method in which metallic antimony is fired at a temperature of 400° C. or higher in an oxygen-containing atmosphere.

次に本発明をより具体的に説明する。Next, the present invention will be explained in more detail.

本発明では、原料として金属アンチモンの粉末、粒塊、
線、棒等を使用し、これを酸素含有雰囲気中で加熱焼成
する。ここで、酸素含有雰囲気とは、酸素もしくは酸素
を含有する雰囲気の意味であり、例えば酸素中や空気中
であればよい、加熱焼成は、例えばアルミナ基板、磁性
ルツボ、石英容器等の耐熱性開口容器に上記金属アンチ
モンを入れて行なうことができる。加熱焼成温度は、金
属アンチモンが酸化するときに重量が減少する温度で行
なう。すなわち、金属アンチモンは高温で酸化されると
、酸化時に昇華もしくは蒸発を起こして重量が減少し、
その過程で針状もしくは棒状単結晶を育成してウィスカ
ーを形成するものと考えられる。したがって、昇華もし
くは蒸発が多い状態で金属アンチモンを酸化させれば、
より効果的にウィスカーを形成することができる。金属
アンチモンの酸化速度を重量の減少する速度で表わすと
、500℃では1時間で約−15mg/crn’、60
0℃では1時間で約−30mg/c m’である。この
ように、酸化時に重量が減少する温度で加熱を行なうこ
とにより、酸化アンチモンウィスカーが無数に生成され
る0本発明では、この点に着眼して、加熱焼成温度を4
50℃以上としたのである。
In the present invention, metal antimony powder, granules,
This is heated and fired in an oxygen-containing atmosphere using a wire, rod, etc. Here, the term "oxygen-containing atmosphere" refers to oxygen or an atmosphere containing oxygen, and for example, it may be in oxygen or air.Heating and firing can be used to heat-resistant openings such as alumina substrates, magnetic crucibles, quartz containers, etc. The above-mentioned antimony metal can be placed in a container. The heating and firing temperature is such that the weight of antimony metal decreases when it oxidizes. In other words, when metal antimony is oxidized at high temperatures, it undergoes sublimation or evaporation during oxidation and its weight decreases.
It is thought that during this process, needle-like or rod-like single crystals are grown to form whiskers. Therefore, if metallic antimony is oxidized under conditions of high sublimation or evaporation,
Whiskers can be formed more effectively. The oxidation rate of antimony metal is expressed as the rate of decrease in weight: at 500°C, it is approximately -15 mg/crn' in 1 hour, 60
At 0°C, it is about -30 mg/cm' in 1 hour. In this way, by heating at a temperature at which the weight decreases during oxidation, countless antimony oxide whiskers are generated.In the present invention, focusing on this point, the heating and firing temperature is set to 4.
The temperature was set at 50°C or higher.

こうして得られた酸化アンチモンウィスカーは太さ数ル
麿〜数士4m、長さ数百7im〜数IDI程度の針状も
しくは棒状の単結晶からなっている。
The antimony oxide whiskers thus obtained consist of needle-like or rod-like single crystals with a thickness of several meters to four meters and a length of several hundred seven inches to several IDI.

なお、酸化アンチモンウィスカーを工業的に製造するに
は、例えば第2図に示すような製造装置を使用できる。
Incidentally, in order to industrially manufacture antimony oxide whiskers, a manufacturing apparatus as shown in FIG. 2, for example, can be used.

すなわち、この製造装置は1石英製チューブ11の一端
に酸素含有ガス12の供給口13が形成され、他端に酸
素含有ガス12の排出口14が形成され、石英製チュー
ブ11の内部は酸素含有ガス12の流通路となっている
。そして、石英製チューブ11の内部にはアルミナから
なる多孔板15が設置され、この多孔板15上に臨むよ
うに金属アンチモンの供給管16が導入されている。ま
た、多孔板15の近傍に位置する石英製チューブ11の
外周には環状のヒータ17が取付けられている。
That is, in this manufacturing apparatus, a supply port 13 for oxygen-containing gas 12 is formed at one end of a quartz tube 11, a discharge port 14 for oxygen-containing gas 12 is formed at the other end, and the inside of the quartz tube 11 is filled with oxygen-containing gas. It serves as a flow path for gas 12. A perforated plate 15 made of alumina is installed inside the quartz tube 11, and a metal antimony supply pipe 16 is introduced so as to face onto the perforated plate 15. Further, an annular heater 17 is attached to the outer periphery of the quartz tube 11 located near the perforated plate 15.

この製造装置においては、金属アンチモンの粉末、粒塊
、板、線などを供給管16から多孔板15上に供給する
。そして、予め80℃程度に加温された酸素含有ガス1
2を供給口13より吹き込み、石英製チューブ1.1内
部を流通させて排出口14より排出させる。酸素含有ガ
ス12を予め加温するのは、石英製チューブ11内部の
温度低下を防ぐためと、金属アンチモンの酸化効率を上
げるためである。ただし、室温の酸素含有ガス12を吹
き込んでもかまわない。この状態でヒータ17により石
英製チューブ11内を加熱して多孔板15の近傍を45
0℃以上にする。金属アンチモンは酸素含有ガス12に
よって酸化され、順次酸化アンチモンとなって昇華もし
くは蒸発する。昇華もしくは蒸発した酸化アンチモンは
、酸素含有ガス12と共に上方に運ばれて酸化アンチモ
ンウィスカーとなって排出口14から流出する。したが
って、排出口14から流出した酸化アンチモンウィスカ
ーを適宜手段により酸素含有ガス12から分離して酸化
アンチモンウィスカーを得ることができる。なお、酸素
含有ガス12の流速は、酸化アンチモンウィスカーの生
成速度に合せてgA整した方がよく、あまり高速でない
方がよい。実験によれば0.1(〜107/分程度が好
ましい。
In this manufacturing apparatus, antimony metal powder, granules, plates, wires, etc. are supplied from a supply pipe 16 onto a perforated plate 15 . Then, oxygen-containing gas 1 heated to about 80°C in advance
2 is blown into the supply port 13, circulated inside the quartz tube 1.1, and discharged from the discharge port 14. The reason why the oxygen-containing gas 12 is heated in advance is to prevent a drop in temperature inside the quartz tube 11 and to increase the oxidation efficiency of metal antimony. However, the oxygen-containing gas 12 at room temperature may be blown. In this state, the inside of the quartz tube 11 is heated by the heater 17, and the vicinity of the perforated plate 15 is heated by the heater 17.
Keep the temperature above 0℃. Metallic antimony is oxidized by the oxygen-containing gas 12 and sequentially becomes antimony oxide, which sublimes or evaporates. The sublimated or evaporated antimony oxide is carried upward together with the oxygen-containing gas 12, becomes antimony oxide whiskers, and flows out from the outlet 14. Therefore, the antimony oxide whiskers flowing out from the outlet 14 can be separated from the oxygen-containing gas 12 by appropriate means to obtain antimony oxide whiskers. Note that the flow rate of the oxygen-containing gas 12 should be adjusted to gA in accordance with the generation rate of antimony oxide whiskers, and should not be too high. According to experiments, about 0.1 (~107/min) is preferable.

「発明の実施例」 実施例1 金属アンチモンの粉末(純度99.9!3%、粒度的I
gm)をアルミナ基板にIg乗せ、空気中で450℃に
て2時間加熱焼成した結果、太さ5 p−m以下、長さ
1mm以下の針状もしくは棒状単結晶からなる酸化モリ
ブデンウィスカーが得られた。収率は約5%であった。
"Embodiments of the invention" Example 1 Metallic antimony powder (purity 99.9!3%, particle size I
As a result of placing Ig on an alumina substrate and heating and firing it in air at 450°C for 2 hours, molybdenum oxide whiskers consisting of needle-shaped or rod-shaped single crystals with a thickness of 5 pm or less and a length of 1 mm or less were obtained. Ta. The yield was approximately 5%.

実施例2 実施例1と同様な金属アンチモンの粉末をアルミナ基板
に1g乗せ、空気中で550℃にて1時間加熱焼成した
結果、太さ10pm以下、長さ2 mm以下の針状もし
くは棒状単結晶からなる酸化モリブデンウィスカーが得
られた。収率は約20%であった。
Example 2 As a result of placing 1 g of the same metal antimony powder as in Example 1 on an alumina substrate and firing it in air at 550°C for 1 hour, a needle-like or rod-like unit with a thickness of 10 pm or less and a length of 2 mm or less was obtained. Molybdenum oxide whiskers consisting of crystals were obtained. The yield was about 20%.

実施例3 実施例1と同様な金属アンチモンの粉末をアルミナ基板
に1g乗せ、空気中で700℃にて1時間加熱焼成した
結果、太さ50gm以下、長さ5■以下の針状もしくは
棒状単結晶からなる酸化モリブデンウィスカーが得られ
た。収率は約50%であった。なお、この酸化アンチモ
ンウィスカーの15倍の顕微鏡写真を第1図に示す。
Example 3 As a result of placing 1 g of the same metal antimony powder as in Example 1 on an alumina substrate and firing it in air at 700°C for 1 hour, a needle-like or rod-like unit with a thickness of 50 gm or less and a length of 5 cm or less was formed. Molybdenum oxide whiskers consisting of crystals were obtained. The yield was about 50%. A micrograph of this antimony oxide whisker at a magnification of 15 times is shown in FIG.

実施例4 金属アンチモンの粒(純度99.99%、粒度的2mm
 )をアルミナ基板に1g乗せ、実施例1〜3と同じ各
条件で加熱焼成した結果、それぞれ同様な結果が得られ
た。
Example 4 Metallic antimony particles (99.99% purity, 2 mm particle size)
) was placed on an alumina substrate and heated and fired under the same conditions as Examples 1 to 3, and the same results were obtained.

なお、実施例1〜4で得られたウィスカーは、Xi回折
の結果、酸化アンチモンであることが確認された。
Note that the whiskers obtained in Examples 1 to 4 were confirmed to be antimony oxide as a result of Xi diffraction.

「発明の効果」 以上説明したように、本発明の酸化アンチモンウィスカ
ーの製造方法によれば、金属アンチモンを酸素含有雰囲
気中で450℃以上の温度で焼成することにより、効率
的に酸化アンチモンウィスカーを得ることができる。ま
た、こうして得られた本発明の酸化アンチモンウィスカ
ーは、醇化アンチモンの針状もしくは棒状の単結晶から
なり、プラスチック用フィラー等各種工業材料としての
用途が期待される。
"Effects of the Invention" As explained above, according to the method for producing antimony oxide whiskers of the present invention, antimony oxide whiskers can be efficiently produced by firing metallic antimony at a temperature of 450°C or higher in an oxygen-containing atmosphere. Obtainable. Furthermore, the antimony oxide whiskers of the present invention thus obtained are composed of needle-like or rod-like single crystals of antimony oxide, and are expected to be used as various industrial materials such as fillers for plastics.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明による酸化アンチモンウィスカーの粒子
構造を示す15倍の顕微鏡写真、第2図は本発明による
製造方法をT業的に行なうのに適した製造装置の一例を
示す断面図である。 なお、図中、11は石英製チューブ、12は酸素含有ガ
ス、13は酸素含有ガスの供給口、14は酸素含有ガス
の排出口、15は多孔板、16は金属アンチモンの供給
管、17はヒータである。 2:?〜i ’;4
FIG. 1 is a 15x micrograph showing the particle structure of antimony oxide whiskers according to the present invention, and FIG. 2 is a cross-sectional view showing an example of a manufacturing apparatus suitable for carrying out the manufacturing method according to the present invention in a T-industrial scale. . In the figure, 11 is a quartz tube, 12 is an oxygen-containing gas, 13 is an oxygen-containing gas supply port, 14 is an oxygen-containing gas discharge port, 15 is a perforated plate, 16 is a metal antimony supply pipe, and 17 is a metal antimony supply pipe. It's a heater. 2:? ~i';4

Claims (2)

【特許請求の範囲】[Claims] (1)酸化アンチモンの針状もしくは棒状単結晶からな
る酸化アンチモンウィスカー。
(1) Antimony oxide whiskers consisting of needle-like or rod-like single crystals of antimony oxide.
(2)金属アンチモンを酸素含有雰囲気中で450℃以
上の温度で焼成することを特徴とする酸化アンチモンウ
ィスカーの製造方法。
(2) A method for producing antimony oxide whiskers, which comprises firing metal antimony at a temperature of 450° C. or higher in an oxygen-containing atmosphere.
JP22007584A 1984-10-19 1984-10-19 Antimony oxide whisker and its production Pending JPS61101499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22007584A JPS61101499A (en) 1984-10-19 1984-10-19 Antimony oxide whisker and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22007584A JPS61101499A (en) 1984-10-19 1984-10-19 Antimony oxide whisker and its production

Publications (1)

Publication Number Publication Date
JPS61101499A true JPS61101499A (en) 1986-05-20

Family

ID=16745545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22007584A Pending JPS61101499A (en) 1984-10-19 1984-10-19 Antimony oxide whisker and its production

Country Status (1)

Country Link
JP (1) JPS61101499A (en)

Similar Documents

Publication Publication Date Title
JP4200703B2 (en) Silicon manufacturing apparatus and method
JPS61158877A (en) Manufacture of ceramic porous membrane
CN1460638A (en) Flaky carbon nano tube, preparation method and special equipment
US4865832A (en) Molybdenum oxide whiskers and a method of producing the same
US5055280A (en) Process for producing transition metal boride fibers
CN108286043A (en) β-Ga are prepared using chemical vapour deposition technique2O3The method of nanosphere
JPS62117628A (en) Supported catalyst, its production and use
JPH08337500A (en) Tin oxide whisker and its production
JPS61101499A (en) Antimony oxide whisker and its production
JPS61117200A (en) Tellurium oxide whisker and its production
WO1990007022A1 (en) Production method of zinc oxide whisker
JPS6156163B2 (en)
JPS61122198A (en) Rpoduction of antimony oxide whisker and apparatus therefor
JPS61101497A (en) Method and apparatus for producing molybdenum oxide whisker
JPS60131826A (en) Manufacture of zirconia fine powder and partially stabilized zirconia sintered body
JPH0570286A (en) Production of transparent zinc oxide
US3391681A (en) Preparation of aluminum and chromium sesquioxide fibers
JPH03187998A (en) Production of aluminum nitride whisker
JPS63117906A (en) Member for production apparatus of polycrystalline silicon
JPS61136998A (en) Germanium oxide whisker and its manufacture
JPS61158900A (en) Apparatus for producing metal oxide whisker
Wang et al. Effect of heat treatment on phase transformation of aluminum nitride ultrafine powder prepared by chemical vapor deposition
JPS6287498A (en) Production of molybdenum oxide whisker
JP2002234719A (en) Apparatus for producing silicon material and method therefor
JPH0438801B2 (en)