Products

Alumina Boat Crucible

Brand: Yunxing
Product origin: China
Delivery time: Depending on product size and quantity
Supply capacity: 5,000-10,000/month(Looking for distributors)

1. High temperature resistance, chemical inertness resistance, and high refractoriness. 2. Accept customized sizes. 3. Large stock and fast delivery.

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Alumina Boat Crucible

Alumina Boat Crucibles

Core performance advantages

High Temperature Resistance Characteristics

The alumina boat crucible has excellent thermal stability. Its long-term service temperature can reach up to 1600℃, and the short-term ultimate temperature can even withstand 1800℃. This characteristic makes it suitable for processes such as high-temperature smelting and sintering. It performs stably especially in an oxidizing or reducing atmosphere and will not react with air, water vapor, hydrogen, or carbon monoxide.

Chemical Corrosion Resistance

Due to the inert nature of alumina itself, the alumina boat crucible has a strong corrosion resistance to acids and weakly alkaline substances, and is suitable for the treatment of samples using weakly alkaline substances such as anhydrous sodium carbonate as a flux. However, it should be noted that it is not suitable for strongly alkaline substances (such as sodium hydroxide and sodium peroxide) or acidic fluxes (such as potassium pyrosulfate) to avoid chemical reactions that may cause damage to the Alumina boat crucible.

Thermal Shock Resistance and Mechanical Strength

Alumina boat crucible is formed by the slip casting process, featuring a dense structure, high thermal conductivity, and a low coefficient of thermal expansion. Alumina boat crucible can withstand drastic temperature changes during rapid heating and cooling processes, and is not prone to cracking due to sudden cooling and heating. Meanwhile, it has high mechanical strength and can maintain a stable shape in high-temperature environments, making it suitable for complex operations.

Insulation Property and Diverse Specifications

Aluminum oxide is a good insulator and is suitable for electrical insulation applications in high-temperature environments. In addition, the alumina boat crucibles are available in various shapes such as arc-shaped, cylindrical, and square. Alumina boat crucibles capacities range from 5 ml to 1500 ml, which can meet different experimental or production requirements.

Widely applicable fields

Laboratory and Scientific Research Scenarios

In the fields of materials science, chemical analysis, etc., alumina boat crucibles are commonly used for high-temperature heating, melting samples (such as metals, ceramics, glass, etc.), as well as various component analyses. Alumina boat crucibles high-purity characteristics prevent contamination by impurities, ensuring the accuracy of experimental data.

Industrial Production and Quality Control

In industries such as metallurgy and chemical engineering, alumina boat crucibles can be used for the high-temperature treatment and detection of raw materials, intermediate products, and finished products, helping to optimize the production process. For example, in the smelting of metal alloys, alumina boat crucibles high-temperature resistance and corrosion resistance ensure the purity of the molten metal.

Material Preparation and Advanced Manufacturing

High-purity alumina boat crucibles are key tools for the preparation of high-performance ceramics, semiconductor materials, and new energy materials (such as cathode materials for lithium-ion batteries). Alumina boat crucibles stable chemical properties and high-temperature resistance provide an ideal environment for material synthesis.

Size,Performance index

Alumina boat crucibles /Alumina ceramic trays
	Item NO.	Length (mm)	Width (mm)	Height (mm)	Volume (ml)	Item NO.	Length (mm)	Width (mm)	Height (mm)	Volume (ml)
1	175#	30	20	15	5	076B	50	10	10	2
2	113A	62	32/22	16	18	161#	65	65	65	180
3	154#	80	50	7	20	171#	80	55	15	47
4	076A#	100	10	10	5	075#	100	20	20	28
5	155#	100	30	30	75	114#	100	40	18	55
6	226#	105	22	14	22	227#	184	123	62	1120
7	138#	300	36	18	132	113B#	300	45/30	20	20
8	254#	200	100	50	770	273#	84	13/11	8	7
9	274#	45	13/11	9	5	297#	48	50/10		19
10	303#	100	50	30	100	341#	150	35	25	86
11	338#	100	20	20	28	344#	100	35	20	46
12	355#	60	30	20	22	359#	130	130	60	793
13	360#	145	145	12	128	372#	60/10	30	20	20
14	373#	60/10	50	30	63	382#	175	90	26	254
15	396#	100	100	17.5	100	414#	250	100	70	1400
16	415#	250	56	50	497	440#	250	46/15	15	65
17	444#	50	20	20	13	477#	70	36	17	27
18	493#	44	33	17	16	507#	52	31	6	5
19	514#	120	60	17	66	515#	120	60	14	50
20	523#	105/80	18/14	12	15	526#	200	20	15	30
21	539#	150	150	70	1275	429#	69	22	11	12
22	575#	200	100	40	600	591#	313	45	30	335
23	606#	76.2	12.7	12.7	7.5	614#	120	83	53	385
24	630#	160	160	50	1015	636#	50	40	20	27
25	643#	170	170	27	370	673#	75	15	10	6
26	678#	190	190	80	2430	689#	101.6	38.1	21.08	58
27	695#	200	200	50	1620	707#	114.3	76.2	9.6	470
28	644#	120	80	22	160	662#	64	64	60	210
29	718#	90	17	11.5	9	724#	120	30	20	48
30	728#	100	35	15	35	747#	50	12	10	3
31	776#	64	38	20	34	791#	48	30	24	16
32	796#	88.9	88.9	44.45	260	803#	130	80	15	97
33	799#	188	140	42	850	822#	110	70	35	180
34	825#	50	29	28	30	829#	300	65	30	460
35	837#	300	60	30	410	838#	108	45	19	68
36	849#	150	15	10	12	871#	76	76	21	46
37	879#	83	52	6.5	17	886#	130	90	140	1300
38	889#	100	100	27	180	890#	120	60	25	135
39	906#	206.38	152.4	133.35	3560	907#	165.1	111.76	104.78	1560
40	910#	50.8	50.8	6	8	916#	150	65	19	140
41	918#	250	200	100	4300	919#	200	150	100	2500
42	920#	170	170	100	2400	921#	190	190	100	3000
43	959#	300	220	70	3950	966#	160	47	23.5	115
44	978#	65	30	17	21	989#	50	12	9	2.5
45	990#	70	14	10	5	992#	62	22	16	15
46	A20#	83	12.7/11.7	4.5	5	805#	13	13	8	0.6
47	A39#	18	100	10	9	A51#	190	190	50	1460
48	A52#	65	65	30	90	A59#	100	45	19	60
49	A92#	95	48	74	215	A93#	107	60	69	330
50	A94#	150	80	55	450	A95#	250	200	120	5240
51	B18#	220	45	50	330	B19#	54	38	20	25
52	B23#	40	30	6	5	B34#	15	8	100	5.5
53	B71#	40	100	20		B72#	58	145	29
54	B90#	125	125	85		B96#	105	22	14.5
55	B99#	70	70	30		C07#	125	60	20
56	C09#	137	27	21		C34#	250	250	50
57	C75#	140	140	60		C81#	100	14	12
58	C84#	150	150	95		C88#	75	50	11
59	D12#	50	12	10		D13#	75	15	10
60	D14#	90	17	11.5		801#	55/45	13	9/2
61	D37#	205	100	300		D54#	120	30	15

Alumina ceramic performance index (Notice of Correct in Leakeage Rate）

NO.	Property	Unit	Alumina
1	Al2O3	%	>99.3
2	SiO2	%	—
3	Density	g/cm3	3.88
4	Water absorption	%	0.01
5	Compressive strength	MPa	2300
6	20℃ leakage rates	Torr・L/sec	>10-11=1.33322×10-12Pa・m3/sec
7	Twisting in high temperature	mm	0.2 allowed in 1600℃
8	Bonding in high temperature		not bonded in 1600℃
9	20—1000℃ coefficient of thermal expansion	mm.10-6／℃.m	8.2
10	Thermal conductivity	W/m.k	25
11	Electric insulation strength	KV/mm	20
12	20℃direct current insulation resistance	Ohm/cm	1014
13	High-temperature insulation resistance	1000℃ MΩ	≥0.08
13	High-temperature insulation resistance	1300℃ MΩ	≥0.02
14	Thermal shock resistance		4 times not cracked in 1550℃
15	Maximum working temperature	℃	1800
16	Hardness	Mohs	9
17	Flexural strength	Mpa	350

Factory Equipment

Slip casting moulding: Inject the prepared slurry into the gypsum mold and let it stand for a period of time to allow the gypsum mold to absorb moisture. The slurry forms a uniform body on the inner wall of the mold.
Injection moulding: Inject a slurry containing paraffin into a metal mold at a certain temperature and pressure, and after the body cools and solidifies, perform demolding to prepare ceramic bodies.
Extrusion moulding: Suitable for long tube products, the powder is extruded into shape through an extruder.